solve for the indicated variable. m=h2kt2x for t>0.

Answers

Answer 1

The solution of the equation m=h²kt²x is t = √(m/h²kx) for t>0.

A value or values which, when substituted for a variable in an equation, makes the equation true is known as a solution.

Also, to solve for some variable in an equation, just isolate that variable on one side of the equation.

To solve for t, we need to isolate it on one side of the equation m=h²kt²x.

We can start by dividing both sides by h²kx:

m/h²kx = t²

To solve for t, we need to take the square root of both sides.

However, we also know that t>0, so we need to take the positive square root:

t = √(m/h²kx)

Therefore, the solution for the indicated variable t is t = √(m/h²kx) for t>0.

Learn more about equation:

https://brainly.com/question/22688504

#SPJ11


Related Questions

What is the area of a triangle, in square inches, with a base of 13 inches and a height of 10 inches

Answers

Answer: 65

Step-by-step explanation:

area of triangle = 1/2 of base * height

so 13*10 = 130

130 * 1/2 = 65

Kite PQRS at the right is concave. If we have PQ = QR = 20, PS= SR= 15, and QS = 7, then what is the area of kite PQRS?

Answers

The area of Kite PQRS at the right is concave. If we have PQ = QR = 20, PS= SR= 15, and QS = 7 is  220 square units

How to find  the area of kite PQRS

First, we can find the length of the diagonal PR using the Pythagorean theorem:

PR² = PQ² + QR² = 20² + 20² = 800

PR = sqrt(800) ≈ 28.28

Similarly, we can find the length of the diagonal QS:

QS² = QR² + RS² = 20² + 15² = 625

QS = sqrt(625) = 25

Now, we can split the kite into two triangles, PQS and QRS, and use the formula for the area of a triangle:

area of PQS = (1/2) * PQ * QS = (1/2) * 20 * 7 = 70

area of QRS = (1/2) * QR * RS = (1/2) * 20 * 15 = 150

So the total area of the kite is:

area of PQRS = area of PQS + area of QRS = 70 + 150 = 220

Therefore, the area of kite PQRS is 220 square units

Learn more about kite at https://brainly.com/question/26870235

#SPJ1

What is the area of triangle ABC ?

Answers

the triangle has already two 60°, so that means the angle atop is hmm well, 60° :), so we have an equilateral triangle, with a side of 12

[tex]\textit{area of an equilateral triangle}\\\\ A=\cfrac{s^2\sqrt{3}}{4} ~ \begin{cases} s=\stackrel{length~of}{a~side}\\[-0.5em] \hrulefill\\ s=12 \end{cases}\implies A=\cfrac{12^2\sqrt{3}}{4}\implies A=36\sqrt{3}\implies A\approx 62.35[/tex]

use laplace transforms to solve the initual value problem y'-4y =f(x), y(0)=0 2 0<=x and x<4

Answers

The solution to the initial value problem y'-4y=f(x), y(0)=0 for 0<=x<4 is given by:

y(x) = F(-4)e^(-4x)

The Laplace transform of the differential equation y'-4y=f(x) is given by:

sY(s) - y(0) - 4Y(s) = F(s)

where Y(s) and F(s) are the Laplace transforms of y(x) and f(x), respectively.

Substituting the initial condition y(0)=0 and rearranging, we get:

Y(s) = F(s)/(s+4)

Now we need to find the inverse Laplace transform of Y(s) to obtain the solution y(x). Using the partial fraction decomposition method, we can write:

Y(s) = A/(s+4) + B

where A and B are constants to be determined.

Multiplying both sides by (s+4), we get:

F(s) = A + B(s+4)

Setting s=-4, we get:

A = F(-4)

Setting s=0, we get:

B = Y(0) = y(0) = 0

Therefore, the partial fraction decomposition of Y(s) is given by:

Y(s) = F(-4)/(s+4)

Taking the inverse Laplace transform of Y(s), we get:

y(x) = L^-1{F(-4)/(s+4)} = F(-4)L^-1{1/(s+4)}

Using the table of Laplace transforms, we find that the inverse Laplace transform of 1/(s+4) is e^(-4x). Therefore, the solution to the initial value problem is given by:

y(x) = F(-4)e^(-4x)

where F(-4) is the value of the Laplace transform of f(x) evaluated at s=-4.

For more questions like Differential equation click the link below:

https://brainly.com/question/14598404

#SPJ11

If ~ (p^q) is true, what must be the truth values of the component statements? Select the correct answer below. a. At least one component statement must be true. b. At least one component statement must be false. c. The component statements must both be true. d. The component statements must both be false.

Answers

If ~ (p^q) is true, then the correct answer is: b. At least one component statement must be If ~ (p^q) is true.

If ~ (p^q) is true, then ~(p^q) must be false. Using De Morgan's law, ~(p^q) is equivalent to (~p v ~q).

Here's a step-by-step explanation:
1. The given statement is ~ (p^q), which means NOT (p AND q).
2. In order for the AND operator to be true, both p and q must be true.
3. Since we know ~ (p^q) is true, it means (p^q) must be false.
4. If (p^q) is false, then at least one of the component statements (p or q) must be false, because if both were true, (p^q) would be true.

To know more about "De Morgan's law" refer here:

https://brainly.com/question/13278160#

#SPJ11

Find the median weight, in kilograms (kg), of the weights below: 14 kg, 17 kg, 19 kg, 8 kg, 15 kg 8 kg,​

Answers

Answer:

14.5kg

Step-by-step explanation:

to find the median put the numbers in order.

8,8,14,15,17,19

Start crossing out the smallest and largest at the same time until you have only 1 or 2 numbers.

8,14,15,17

14,15

Since there is 2 numbers we take the average of them

14+15=29

29/2 = 14.5.       The answer is 14.5 kg

Maximize Q = xy, where x and y are positive numbers such that x + 3y2 = 16. Write the objective function in terms of y. Q= (16- 3y?)y (Type an expression using y as the variable.) The interval of interest of the objective function is (0,00). (Simplify your answer. Type your answer in interval notation.) The maximum value of Q is (Simplify your answer.)

Answers

The maximum value of Q is 16√(2/3).

To maximize Q=xy, where x and y are positive numbers such that x + 3y² = 16, we can solve for x in terms of y and substitute into the objective function.

Thus, x = 16 - 3y² and Q = (16 - 3y²)y. To find the interval of interest of the objective function, we note that y is positive and solve for the maximum value of y that satisfies x + 3y² = 16, which is y = √(16/3). Therefore, the interval of interest is (0, √(16/3)).

To find the maximum value of Q, we can differentiate Q with respect to y and set it equal to zero.

This yields 16-6y²=0, which implies y=√(16/6). Substituting this value of y back into the objective function yields the maximum value of Q, which is Q = (16-3(16/6))(√(16/6)) = 16√(2/3).

To know more about objective function click on below link:

https://brainly.com/question/29185392#

#SPJ11

which of the following examples involves paired data? group of answer choices a study compared the average number of courses taken by a random sample of 100 freshmen at auniversity with the average number of courses taken by a separate random sample of 100 freshmen at a community college.

Answers

The example that involves paired data is not among the group of answer choices, as the given example involves two separate random samples, rather than pairs of measurements taken from the same individuals.

Based on your question, the example involving paired data is:
A study compared the average number of courses taken by a random sample of 100 freshmen at a university with the average number of courses taken by a separate random sample of 100 freshmen at a community college.

Paired data occurs when the observations in one dataset can be directly paired with observations in another dataset, usually because they are related in some way.

In this example, the paired data comes from comparing the average number of courses taken by freshmen at two different types of educational institutions (a university and a community college).

For similar question on  random sample.

https://brainly.com/question/30097336

#SPJ11

You found a groovy shirt on clearance. It was originally $25. 0. The first tag read, "1/2 off". The second tag read, "Take an additional 1/2 off". How much is the shirt?

Answers

The final price of the shirt is 1/2 of $12.50, which is $6.25.

To calculate the final price of the shirt, we first need to determine what "1/2 off" means. This means the shirt is now being sold for half of its original price, which is $25.0/2 = $12.50.

Next, we need to determine what "Take an additional 1/2 off" means. This means that we need to take half of the discounted price of $12.50, which is

$12.50/2 = $6.25

and subtract it from the discounted price:

$12.50 - $6.25 = $6.25.

Therefore, the final price of the shirt is $6.25.

Learn more about discount

https://brainly.com/question/23865811

#SPJ4

Show that each of the following sequences is divergenta. an=2nb. bn= (-1)nc. cn = cos nπ / 3d. dn= (-n)2

Answers

The sequence  aₙ = 2n is divergent.

To show that the sequence aₙ is divergent, we need to show that it does not converge to a finite limit.

Let's assume that the sequence aₙ converges to some finite limit L, i.e., lim(aₙ) = L. Then, for any ε > 0, there exists an integer N such that |aₙ - L| < ε for all n ≥ N.

Let's choose ε = 1. Then, there exists an integer N such that |aₙ - L| < 1 for all n ≥ N. In particular, this means that |2n - L| < 1 for all n ≥ N.

However, this is impossible because as n gets larger, 2n gets arbitrarily large and so it is not possible for |2n - L| to remain less than 1 for all n ≥ N. Therefore, our assumption that aₙ converges to a finite limit L is false, and hence aₙ is divergent.

Learn more about divergent here

brainly.com/question/30726405

#SPJ4

The given question is incomplete, the complete question is:

Show that each of the following sequences is divergent aₙ=2n

fill in the blank to complete the trigonometric identity. sin2(u) cos2(u) = tan2(u)

Answers

The trigonometric identity is sin²(u)/cos²(u) = tan²(u).

What is trigonometry?

The study of the correlation between a right-angled triangle's sides and angles is the focus of one of the most significant branches of mathematics in history: trigonometry.

sin²(u) + cos²(u) = 1 is the trigonometric identity that relates the three basic trigonometric functions sine (sin), cosine (cos), and tangent (tan) of an angle u in a right-angled triangle.

However, to derive the identity sin²(u) / cos²(u) = tan²(u), we can start with the definition of tangent: tan(u) = sin(u) / cos(u).

Then, we can square both sides of the equation:

tan²(u) = (sin(u) / cos(u))²

tan²(u) = sin²(u) / cos²(u)

Therefore, sin²(u) / cos²(u) = tan²(u).

Learn more about trigonometry on:

https://brainly.com/question/13729598

#SPJ1

The complete question is:

Fill in the blank to complete the trigonometric identity. sin²(u)__cos²(u) = tan²(u)

describe and justify the methods you used to solve the quadratic equations in parts a and B

I also submitted two pictures of questions, A and B

Answers

The solution of given equation by formula of quadratic Equation is x = -1 OR x = -0.5

What is quadratic Equation?

A quadratic equation is a polynomial equation of the second degree, meaning it contains one or more terms that involve a variable raised to the power of two. The standard form of a quadratic equation is:

ax² + bx + c = 0where a, b, and c are constants, and x is the variable.

According to given information

The equation is 2x(x+1.5)=-1.

Expanding the left-hand side, we get:

2x² + 3x + 1 = 0

We can solve for x using the quadratic formula:

x = (-b ± √(b²- 4ac)) / 2a

Where a = 2, b = 3, and c = 1.

x = (-3 ± √(3² - 4(2)(1))) / 4

x = (-3 ± √(1)) / 4

x = (-3 ± 1) / 4

So, x can be either:

x = -1 OR x = -0.5

Rounding to the nearest tenth, we have:

x ≈ -1.0 OR x ≈ -0.5

To Know more about quadratic Equation Visit:

brainly.com/question/30098550

#SPJ1

The following table shows the Myers-Briggs personality preferences for a random sample of 400 people in the listed professions Extroverted ntroverted Occupation Clergy (all denominations) M.D. Lawyer Column Total Use the chi-square test to determine if the listed occupations and personality preferences are independent at alpha 0.1. Find the value of the chi-square statistic for the sample. Row Total 107 157 136 400 65 92 52 182 18
Select one:
a. 3.09 b. 13.99 C. 0.25 d. 12.01 e. 0.01 The following table shows the Myers-Briggs personality preferences for a random sample of 400 people in the listed professions Extroverted Occupation Clergy (all denominations) M.D. Lawyer Column Total Use the chi-square test to determine if the listed occupations and personality preferences are independent at the 0.01 level of significance. Find (or estimate) the P-value of the sample test statistic Introverted 91 81 216 Row Total 104 161 135 400 184 Select one:
a. 0.01 < P-value < 0.025
b. 0.10< P-Value0.25 C. 0.25 < P-Value <0.5 d. 0.005 < P-Value <0.01 e. 0.025 < P-Value < 0.05 The following table shows the Myers-Briggs personality preferences for a random sample of 409 people in the listed professions. xtroverted Introverted Occupation Clergy (all denominations) M.D Lawyer Column Total Use the chi-square test to determine if the listed occupations and personality preferences are independent at the 0.10 level of significance. Depending on the P-value, will you reject or fail to reject the null hypothesis of independence? Row Total 108 164 137 5 0 191 218 09 Select one a. Since the P-value is greater than α, we fail to reject the null hypothesis that the Myers-Briggs personality preference and profession are not independent. At 0.10 level of significance, we conclude that the Myers-Briggs personality preference and profession are independent. Since the P-value is greater than α, we reject the null hypothesis that the Myers-Briggs personality preference and profession are not independent. At 0.10 level of significance, we conclude that the Myers-Briggs personality preference and profession are independent. C. Since the P-value is less than α, we fail to reject the null hypothesis that the Myers-Briggs personality preference and profession are independent. At 0.10 level of significance, we conclude that the Myers-Briggs personality preference and profession are not independent. O d. Since the P-value is less than α, we reject the null hypothesis that the Myers Briggs personality preference and profession are independent. At 0.10 level of significance, we conclude that the Myers-Briggs personality preference and profession are not independent. e. Since the P-value is greater than α, we fail to reject the null hypothesis that the Myers-Briggs personality preference and profession are independent. At 0.10 level of significance, we conclude that the Myers-Briggs personality preference and profession are not independent.

Answers

For the first question, we need to find the chi-square statistic value. Using the given table, we can calculate the expected frequencies and then use the chi-square formula to get the value.

The calculated chi-square value is 13.99. Since alpha is 0.1, we compare this value to the critical chi-square value at 2 degrees of freedom (since we have 2 rows and 3 columns), which is 4.605. Since the calculated value is greater than the critical value, we reject the null hypothesis that the listed occupations and personality preferences are independent.


For the second question, we need to find the P-value of the sample test statistic. Using the given table, we can calculate the expected frequencies and then use the chi-square formula to get the chi-square value. The calculated chi-square value is 6.27. Since we have 2 degrees of freedom, we can find the P-value using a chi-square distribution table or calculator. The calculated P-value is 0.043, which is less than alpha (0.01). Therefore, we reject the null hypothesis that the listed occupations and personality preferences are independent.



For the third question, we need to find the P-value of the sample test statistic and then determine whether to reject or fail to reject the null hypothesis. Using the given table, we can calculate the expected frequencies and then use the chi-square formula to get the chi-square value.

The calculated chi-square value is 3.39. Since we have 2 degrees of freedom, we can find the P-value using a chi-square distribution table or calculator. The calculated P-value is 0.183, which is greater than alpha (0.1). Therefore, we fail to reject the null hypothesis that the listed occupations and personality preferences are independent at the 0.10 level of significance.

To know more about value click here

brainly.com/question/30760879

#SPJ11

if people are born with equal probability on each of the 365 days, what is the probability that three randomly chosen people have different birthdates?

Answers

The probability that three randomly chosen people have different birth date is 0.9918.

To calculate the probability that three randomly chosen people have different birthdates, we can first consider the probability that the second person chosen does not have the same birth day as the first person.

This probability is (364/365), since there are 364 possible birthdates that are different from the first person's birthdate, out of 365 possible birthdates overall.

Similarly, the probability that the third person chosen does not have the same birthdate as either of the first two people is (363/365), since there are now only 363 possible birthdates left that are different from the first two people's birthdates.

To find the overall probability that all three people have different birthdates, we can multiply these individual probabilities together:

(364/365) x (363/365) = 0.9918

So the probability that three randomly chosen people have different birth date is approximately 0.9918, or about 99.2%.

Learn more about probability here,

https://brainly.com/question/31370975

#SPJ11

The probability that three randomly chosen people have different birthdates is approximately 0.9918, or 99.18%.

The counting principle can be used to determine how many different birthdates can be selected from a pool of 365 potential dates. As we assume that people are born with equal probability on each of the 365 days of the year (ignoring leap years).

The first individual can be born on any of the 365 days. The second individual can be born on any of the remaining 364 days. The third individual can be born on any of the remaining 363 days. Therefore, the total number of ways to choose three different birthdates is:

365 x 364 x 363

Let's now determine how many different ways there are to select three birthdates that are not mutually exclusive (i.e., they can be the same). The number of ways to select three birthdates from the 365 potential dates is simply this:

365 x 365 x 365

Consequently, the likelihood that three randomly selected individuals have different birthdates is:

(365 x 364 x 363) / (365 x 365 x 365) ≈ 0.9918

Therefore, the likelihood is roughly 0.9918, or 99.18%.

To know more about Probability visit:

https://brainly.com/question/30034780

which type of associations is a real relationship, not accounted by other variables?

Answers

A real relationship, not accounted by other variables, is a causal relationship. This type of association suggests that one variable directly causes changes in the other. In other words, there is a cause-and-effect relationship between the two variables.

In this type of association, changes in one variable directly cause changes in the other variable, without any other variables influencing the relationship. This contrasts with spurious or indirect associations, where the relationship between two variables is due to the influence of other variables. To determine if an association is a real relationship, researchers often control for potential confounding variables to isolate the direct effect of the variables in question. However, it is important to note that establishing a causal relationship requires careful research design and data analysis to rule out the effects of other variables that could be influencing the relationship.

To learn more about variables : brainly.com/question/17344045

#SPJ11

At exactly 3:15, the ladybug flies from the second
hand to the minute hand, which is 9
inches long.
a. How far off the ground is the ladybug now?

Answers

The distance from the ground to the ladybug is 9 inches.

How to calculate how far off the ground is the ladybug now

We can use trigonometry to solve this problem.

Let's assume that the distance between the second hand and the center of the clock is negligible compared to the length of the minute hand.

At 3:15, the minute hand is pointing directly at the 3 and the second hand is pointing directly at the 12. The angle between the minute hand and the second hand is 90 degrees.

We can draw a right triangle with the minute hand as the hypotenuse and the distance from the center of the clock to the ladybug as one of the legs. Let's call this distance "x". The length of the minute hand is 9 inches, so we have:

sin(90) = x/9

Simplifying this equation, we get:

x = 9sin(90)

x = 9

Therefore, the distance from the ground to the ladybug is 9 inches.

Learn more about trigonometry at https://brainly.com/question/24349828

#SPJ1

write the balanced molecular chemical equation for the reaction in aqueous solution for copper(i) bromide and potassium sulfate. if no reaction occurs, simply write only nr.

Answers

No chemical reaction occurs, so the answer is nr.

To write the balanced molecular chemical equation for the reaction in aqueous solution for copper(I) bromide and potassium sulfate, we first need to identify the products that are formed in the reaction.

The chemical reaction takes place as follows:
Copper(I) bromide (CuBr) reacts with potassium sulfate (K2SO4) in aqueous solution to potentially form copper(I) sulfate (Cu2SO4) and potassium bromide (KBr). However, copper(I) sulfate is unstable and will disproportion into copper(II) sulfate (CuSO4) and copper and no insoluble product is formed which is formed as a ppt.

Therefore, there will be no chemical reaction between copper(I) bromide and potassium sulfate in aqueous solution.

Know more about chemical reaction here:

https://brainly.com/question/11231920

#SPJ11

in computing the determinant of the matrix A= [ -9 -10 10 3 0]0 1 0 9 -3-7 -3 1 0 -50 7 9 0 20 9 0 0 0by cofactor expansion, which, row or column will result in the fewest number of determinants that need to be computer in the second step?Row 5Column 1 Column 4 Column 2 Row 1

Answers

Therefore, we can use cofactor expansion along column 3 to calculate the determinant of matrix A.

The determinant of a 5x5 matrix can be calculated by expanding along any row or column. However, we can try to minimize the number of determinants that need to be computed in the second step by selecting the row or column with the most zeros.

In this case, we can see that column 3 has three zeros, which means that expanding along this column will result in the fewest number of determinants that need to be computed in the second step. Therefore, we can use cofactor expansion along column 3 to calculate the determinant of matrix A.

To learn more about determinant visit:

https://brainly.com/question/13369636

#SPJ11

Compute the z-transforms of the following signals. Cast your answer in the form of a rational fraction.

(a) n u[n]
(b) (-1)"3 un]
(c) u[n] - u[n -2]

Answers

The solution is:

a) The z-transform is (z/(z-2)).

b) The z-transform is (z/(z-2))+(z/(z-3)).

c) The z-transform is (1-2z⁻¹)/(1-2z⁻¹+2z⁻²).

d) The z-transform is ((z+cos4)/(z-2)).

Here, we have,

a) To compute the z-transform of the signal (1+2ⁿ)u[n], we can use the formula for the z-transform of the geometric series. This gives us:

∑_(n=0)^(∞) (1+2ⁿ)z⁻ⁿ = ∑_(n=0)^(∞) z⁻ⁿ + 2∑_(n=0)^(∞) zⁿ = z/(z-2)

b) To compute the z-transform of the signal 2ⁿu[n]+3ⁿu[n], we can use the formula for the z-transform of the geometric series again. This gives us:

∑_(n=0)^(∞) (2ⁿ+3ⁿ)z⁻ⁿ = ∑_(n=0)^(∞) (2z⁻¹)ⁿ + ∑_(n=0)^(∞) (3z⁻¹)ⁿ = (z/(z-2))+(z/(z-3))

c) To compute the z-transform of the signal {1,-2}+2ⁿu[n], we can first compute the z-transform of 2ⁿu[n] using the formula for the z-transform of the geometric series. This gives us:

∑_(n=0)^(∞) 2ⁿz⁻ⁿ = z/(z-2)

Next, we can compute the z-transform of {1,-2} by subtracting the z-transform of 2ⁿu[n] from the z-transform of 1. This gives us:

(1-2z⁻¹)/(1-2z⁻¹+2z⁻²)

d) To compute the z-transform of the signal 2ⁿ+1cos(3n+4)u[n], we can use the formula for the z-transform of a cosine function. This gives us:

∑_(n=0)^(∞) (2ⁿ+cos4)z⁻ⁿ = (z+cos4)/(z-2)

To know more about z-transform, refer here:

brainly.com/question/31133641

#SPJ11

complete question:

Compute the z-transforms of the following signals. Cast your answer in the form of a rational fraction.a) (1+2^n) u[n]b) 2^nu[n]+3^n u[n]c) {1,-2}+(2)^n u[n]d) 2^n+1 cos(3n+4) u[n]show all work

Housing and city planners would like to test whether the average rent per room in their city is different than $935. They take a random sample of rental properties and divide the total rent by number of bedrooms. The display below shows the distribution and summary statistics. Which of the following is a TRUE description of the data? A. The sample median is larger than the sample mean. B. The cost of rent per room is right skewed. C. The population standard deviation is $828. D. The sample data is approximately symmetric.

Answers

Based on the information provided, it is not possible to directly determine which statement is true.

A. The sample median is larger than the sample mean.
To verify this, you would need to compare the median and mean values of the rent per room in the sample data. If the median is greater than the mean, then this statement is true.

B. The cost of rent per room is right skewed.
To determine this, you would need to analyze the distribution of the rent per room in the sample data. If the data has a longer tail on the right side, indicating more expensive rents, then the distribution is right-skewed, and this statement is true.

C. The population standard deviation is $828.
This statement is about the entire population of rental properties in the city, not just the sample. To confirm this, you would need to have access to the entire population data or a reliable estimate of the population standard deviation.

D. The sample data is approximately symmetric.
To verify this, you would need to analyze the distribution of the rent per room in the sample data. If the data is evenly distributed around the central value (neither left-skewed nor right-skewed), then the distribution is symmetric, and this statement is true.

In order to determine which statement is true, you will need to analyze the provided distribution and summary statistics.

To know more about statistics, mean, median and standard deviation. Click on the link.

https://brainly.com/question/9933018

#SPJ11

Area of Circle need help asap

Answers

Answer:

a = 8.26 ftP = 60 ftArea = 247.7 ft²

Step-by-step explanation:

You want the apothem, perimeter, and area of a regular pentagon with side length 12 ft.

Apothem

The apothem is one leg of the right triangle that is half of one of the sectors. The other leg is half the side length. This gives ...

  tan(36°) = (6 ft)/a

  a = (6 ft)/tan(36°) ≈ 8.25829 ft

Perimeter

The perimeter is simply 5 times the side length:

  (12 ft) × 5 = 60 ft

Area

The area is given by the formula ...

  A = 1/2Pa

  A = 1/2(60 ft)(8.25829 ft) ≈ 247.749 ft²

Summary:a = 8.26 ftP = 60 ftArea = 247.7 ft²

__

Additional comment

An n-sided regular polygon with side length s has an area of ...

  A = [s²n]/[4tan(180°/n)]

For s=12 and n=5, this is ...

  A = 12²·5/(4·tan(180°/5)) = 180/tan(36°) ≈ 247.7 . . . . square feet

Suppose that f(x) = x/108 for 3 < x < 15. determine the mean and variance of x.
Round your answers to 3 decimal places. Mean = _____
Variance =____

Answers

Mean of the above function is  8.500 and the variance is 6.875.

To determine the mean and variance of x for the given function f(x) = x/108 for 3 < x < 15, we need to first calculate the mean and then the variance.

The mean, also known as the expected value, is the average value of a random variable. In this case, the random variable is x, and we need to find the expected value of x for the given function.

The integral of f(x) with respect to x from 3 to 15 gives us the expected value or the mean of x:

∫(x/108)dx from 3 to 15

= (1/108)∫xdx from 3 to 15 (using the power rule of integration)

= (1/108) * [(x^2)/2] from 3 to 15

= (1/108) * [(15^2)/2 - (3^2)/2]

= (1/108) * [(225/2) - (9/2)]

= (1/108) * (216/2)

= (1/108) * 108

= 1

So, the mean of x is 1.

Variance is a measure of how much the values of a random variable deviate from the mean. It is calculated as the average of the squared differences between the values and the mean.

The formula for variance is given by Var(x) = E[x^2] - E[x]^2, where E[x] is the expected value or the mean of x.

From the previous calculation, we know that E[x] = 1.

Now, we need to find E[x^2]. For this, we need to square the function f(x) and then find its expected value.

(f(x))^2 = (x/108)^2

= x^2 / 11664

The integral of (f(x))^2 with respect to x from 3 to 15 gives us the expected value of x^2:

∫(x^2/11664)dx from 3 to 15

= (1/11664)∫x^2dx from 3 to 15

= (1/11664) * [(x^3)/3] from 3 to 15

= (1/11664) * [(15^3)/3 - (3^3)/3]

= (1/11664) * [(3375/3) - (27/3)]

= (1/11664) * (3348/3)

= 0.286

Now, substituting the values of E[x^2] and E[x] into the formula for variance, we get:

Var(x) = E[x^2] - E[x]^2

= 0.286 - 1^2

= 0.286 - 1

= -0.714

So, the variance of x is -0.714.

For more questions like Mean click the link below:

https://brainly.com/question/31101410

#SPJ11

The point b is a reflection of point a across which axis?

Point b (7, 8) Point a (-7, -8).

A.The x-axis
B. The y-axis
C. The x-axis and then the y-axis

Answers

To find the reflection of point A (-7, -8) across an axis that results in point B (7, 8), we can observe that the x-coordinates of the two points have opposite signs, and the y-coordinates of the two points also have opposite signs. This suggests that point B is a reflection of point A across both the x-axis and the y-axis.

However, reflecting a point across the x-axis and then the y-axis is equivalent to reflecting the point across the origin. Therefore, point B is a reflection of point A across the origin.

So the correct option is:

C. The x-axis and then the y-axis

A qué conjunto de números pertenece el -12/3

Answers

La expresión -12/3 se simplifica a -4, el cual es un número real. Por lo tanto, -12/3 pertenece al conjunto de los números reales.

an experiment consists of four outcomes with p(e1) = .2, p(e2) = .3, and p(e3) = .4. the probability of outcome e4 is _____.a. .900b. .100c. .024d. .500

Answers

The probability of outcome e4 is 0.1, which means the option (b). 0.100 is the correct answer.

To comprehend this response, keep in mind that the total probability for all outcomes in an experiment must equal 1. We now know the probability for e1, e2, and e3, which total 0.9 (0.2 + 0.3 + 0.4 = 0.9). Because the total of probabilities must equal one, we may remove 0.9 from one to get the chance of e4. As a result, the likelihood of e4 is 0.1 (1 - 0.9 = 0.1).

In other words, there are four possible outcomes in this experiment, with probabilities 0.2, 0.3, 0.4, and an unknown for e4. We may multiply the known probabilities by 0.9, leaving 0.1 for e4. This means that there is a 10% chance of outcome e4 occurring in this experiment.

To learn more about Probability, visit:

https://brainly.com/question/13604758

#SPJ11

The number of chocolate chips in chocolate chip cookies follows the Poisson distribution. A bakery makes a batch of 200 cookies, using 1000 chocolate chips.(a) What is the probability that a randomly selected cookie contains exactly 4 chocolate chips?(b) What is the probability that a randomly selected cookie contains more than 2 chocolate chips?

Answers

(a) The probability that a randomly selected cookie contains exactly 4 chocolate chips is 0.1755.

(b) The probability that a randomly selected cookie contains more than 2 chocolate chips is 0.8753.

How to find the probability that a randomly selected cookie contains exactly 4 chocolate chips?

The number of chocolate chips in a chocolate chip cookie follows the Poisson distribution with parameter λ, where λ is the average number of chocolate chips per cookie. Here, λ = 1000/200 = 5.

(a) The probability that a randomly selected cookie contains exactly 4 chocolate chips is given by the Poisson probability mass function:

P(X = 4) = ([tex]e^{(-5)} * 5^4[/tex]) / 4! = 0.1755

Therefore, the probability that a randomly selected cookie contains exactly 4 chocolate chips is 0.1755.

How to find the probability that a randomly selected cookie contains more than 2 chocolate chips?

(b) The probability that a randomly selected cookie contains more than 2 chocolate chips is given by the complement of the probability that it contains at most 2 chocolate chips:

P(X > 2) = 1 - P(X ≤ 2)

To find P(X ≤ 2), we can use the Poisson cumulative distribution function:

P(X ≤ 2) = Σ(k=0 to 2) [ [tex](e^{(-5)}[/tex] * [tex]5^k[/tex]) / k! ] = 0.1247

Therefore,

P(X > 2) = 1 - P(X ≤ 2) = 1 - 0.1247 = 0.8753

So the probability that a randomly selected cookie contains more than 2 chocolate chips is 0.8753.

Learn more about poisson distribution

brainly.com/question/17280826

#SPJ11

4. Suppose that by doubling the number of required units of nutritional element B from 60 to 120 for 2 weeks, the producer can realize $15 more from the sale of the stock than without the increase. Is this worthwhile?

Answers

I am sorry but I need point do not have a lot of people are not able to get a better understanding 12 is what I have

when to rule out third variables in multiple regression designs help

Answers

In multiple regression designs, it is important to rule out the presence of third variables that may be influencing the relationship between the independent and dependent variables.

Third variables, also known as confounding variables, are extraneous factors that can impact the results of the study and lead to incorrect conclusions.

To rule out third variables, researchers should first conduct a thorough literature review to identify any potential confounding variables that have been previously reported in similar studies. They should also carefully select their sample and control for any known confounding variables during the study design.

Once the data has been collected, researchers can use statistical methods such as correlation analysis or regression analysis to examine the relationships between the independent and dependent variables while controlling for the potential influence of confounding variables. If the results show that the relationship between the independent and dependent variables remains significant even after controlling for the confounding variables, then the third variables can be ruled out.

However, if the confounding variables still have a significant impact on the relationship between the independent and dependent variables, then additional analyses may be needed to further examine the role of these third variables.

In summary, ruling out third variables in multiple regression designs requires careful study design, data collection, and statistical analysis to ensure the accuracy and validity of the results.

Visit here to learn more about variables  : https://brainly.com/question/29583350
#SPJ11

What is the area of the actual flower bed

Answers

The area of the actual flower bed include the following: D. 96 square meters.

How to calculate the area of a triangle?

In Mathematics and Geometry, the area of a triangle can be calculated by using this formula:

Where:

b represents the base area.h represents the height.

Scale:

0.5 cm = 2 m

0.5/2 = New length of flower bed/Actual length of flower bed

Actual length of flower bed = (2 × 3)/0.5 = 12 meters

0.5/2 = New height of flower bed/Actual height of flower bed

Actual height of flower bed = (2 × 4)/0.5 = 16 meters

By substituting the given parameters into the formula, we have;

Area of triangle = 1/2 × base area × height

Area of actual flower bed = 1/2 × 12 × 16

Area of actual flower bed = 96 m².

Read more on area of triangle here: https://brainly.com/question/28470545

#SPJ1

Missing information:

The question is incomplete and the complete question is shown in the attached picture.

Find the area of the cookie when the radius is 10 cm.

Use 3.14 for ​. If necessary, round your answer to the nearest hundredth.

Answers

The area of a cookie with radius of 10cm is given as follows:

A = 314 cm².

How to calculate the area of a circle?

The area of a circle of radius r is given by the multiplication of π and the radius squared, as follows:

A = πr².

The cookie has a circular format, hence the equation used was presented above.

The radius is given as follows:

r = 10 cm.

Hence the area is given as follows:

A = 3.14 x 10²

A = 314 cm².

More can be learned about the area of a circle at https://brainly.com/question/15673093

#SPJ1

The area of a cookie with radius of 10cm is given as follows:

A = 314 cm².

How to calculate the area of a circle?

The area of a circle of radius r is given by the multiplication of π and the radius squared, as follows:

A = πr².

The cookie has a circular format, hence the equation used was presented above.

The radius is given as follows:

r = 10 cm.

Hence the area is given as follows:

A = 3.14 x 10²

A = 314 cm².

More can be learned about the area of a circle at https://brainly.com/question/15673093

#SPJ1

Other Questions
Can anyone help me on this? Im pretty sue wits base x height A pool measuring 18 meters by 30 meters is surrounded by a path of uniform width, as shown in thefigure. If the area of the pool and the path combined is 1900 square meters, what is the width ofthe path? Table 22.1 Labor Union MembershipYear Number of Members1933 2,857,0001934 3,728,0001935 3,753,0001936 4,107,0001937 5,780,0001938 8,265,0001939 8,980,0001940 8,944,0001941 10,489,0001942 10,762,0001943 13,642,0001944 14,621,0001945 14,796,000Which event had the most impact on union growth according to the information shown in the chart and your knowledge of history? (7 points)The increase in the number of women working outside of the homeThe creation of agricultural unions in the Midwest and WestThe federal government's actions to increase industrial output Jake is a senior professional in a firm where he designs machines for assembling robots. What is Jake's designation? a.robotics engineerb.software quality specialistc.robotics techniciand. automation engineere. robotica technologist White dwarfs are not normally seen in globular clusters because: a. the most evolved stars have all become neutron stars. b. white dwarfs are typically too faint to be seen at such distances. C. globular clusters are red, not white! d. they simply do not occur in Population II clusters. e. the clusters are too young to have any white dwarfs yet Each graph below was obtained by transformation(s) of the graph of the cubic function. Write the equation for the function each graph represents.Correct answer gets brainliest ! find the margin of error for . the duration of telephone calls directed by a local telephone company: s= 4.5 minutes, n = 420, 98onfident. In an enterprise-level DBMS, each task that a user completes, such as selecting a product for an order, is called a _____.a.snapshotb.branchc.replicad.transaction Find the surface area of each prism Better Life Nursing Home, Inc. has maintained a dividend payment of $4 per share for many years. The same dollar dividend is expected to be paid in future years. If investors require a 12 percent rate of return on investments of similar risk, determine the value of the company's stock. HELPP Let f(x) = 4x^2-17x+15/x-3a. What numerical form does f(3) take? Whatname is given to this numerical form?b. Plot the graph of f using a friendly windowthat includes x = 3 as a grid point. Sketchthe graph of f taking into account the factthat f(3) is undefined because of division byzero. What graphical feature appears at x = 3?c. The number 7 is the limit of f(x) as xapproaches 3. How close to 3 would you have to keep x in order for f(x) to be within 0.01 unit of 7? Within 0.0001 unit of 7? Howcould you keep f(x) arbitrarily close to 7 justby keeping x close to 3 but not equal to 3? The price of capital (r) is $50. What is the price of labor (w)?$25$50$75$100 An archaeologist found a fossil whose length is489.44 in.Consult the conversion table to calculate the length of the fossil infeet.Round your answer to the nearest tenth. Coughing Sounds: Please indicate the possible cause for the description feature of a cough. You can indicate more than one letter per feature Possible causes A. Asthma B. Chronic Bronchitis C. Pneumonia Description/Feature 1) A Wheezing Cough 2) Dryl Hacking Cough 3) Symptoms in the morning 4) Productive cough with sputum Breath Sounds: Please indicate if each breath sound can be heard during inhalation, exhalation or both A. Inhalation B. Exhalation C. Both Cough Sound 1) 5) Wheezes Stridor Friction Rub Rhonchi Crackles Which reactant for adding carbon group to biotin? Height is normally distributed with a mean of 68 inches and a standard deviation of 3 inches. Given the data above, if 9 people were randomly chosen, what is the probability that their average height would be over 70 inches? 9. When was this speech given?Who was his audience?10. According to Kemp, what werethe effects of Reagan's economicpolicies?11. What evidence does Kemp citeto support his claims?12. Is Kemp's speech a trustworthysource about the effects ofReaganomics? Why? a. Country A and Country B have the same exact fundamentals, but Country A is twice as rich as Country B. Which country would you expect to have higher growth in short run? How will their growth rates compare in the long run? Explain your answers in no more than 5 sentences. (5 marks) b. Explain the concept of Moral Restraint in the context of Malthus model in no more than 5 sentences. (5 marks) Entered Answer Preview Result ABDFGJ ABDFGJ correct The answer above is correct. (1 point) Check all the statements that are true: A. An integer is divisible by b if the last digit in its base-b expansion is zero. B. Using fast modular exponentiation, we can computer a" mod b in order of log(n) steps. C. The god of p?qand pq is pq4. D. The Icm of two distinct prime numbers is their product. E. There is a way to perform block conversion of binary number into decimal. F. The Euclidean algorithm always terminates because the remainders are integers, get smaller with each step and are bounded below by 0. G. You can block convert a binary number to octal by grouping the binary digits into blocks of 3 and converting each block into an octal digit. H. If p and q are distinct primes, then the lcm of p q and pq2 is pq. 1. If a has n distinct prime factors and b has m distinct prime factors and n>m, then ab has at least m and at most n distinct prime factors. J. If a has n distinct prime factors and b has m distinct prime factors and n>m, then ab has at least n and at most n+m distinct prime factors. Place each price discrimination scenario in the appropriate category.Perfect price discrimination _______Second-degree price discrimination _______Third-degree price discrimination _______Not price discrimination _______Answer Bank - Pandy Jewelry charges each customer the maximum he or she is willing to pay for a particular picce of jewelry. - Art's Mac-n-Cheese sells for $0.99 at the Piggly Wiggly, but Bulky Warchouse sells a package of 12 boxey for $10. - Totally Teeth, a toothbrush retail store, sells toothbrushes for $4.00 cach, $7.00 for a two-pack, and $13.00 for a four-pack -Hungry Hungry Buffet charges $4.99 for kid's meals and $12.99 for adult meals,