All positive integers n greater than 1. Therefore, we can conclude that n! < n^n for all n > 1
a) The statement P(2) is 2! < 2^2.
b) P(2) is true since 2! = 2 < 4 = 2^2.
c) The inductive hypothesis is to assume that P(k) is true for some positive integer k.
d) In the inductive step, we need to prove that P(k+1) is true, assuming that P(k) is true.
e) To complete the inductive step, we start with the assumption that P(k) is true, which means that k! < k^k. We then need to prove that (k+1)! < (k+1)^(k+1).
(k+1)! = (k+1) * k! < (k+1) * k^k (since k! < k^k by the inductive hypothesis)
< (k+1) * (k+1)^k
= (k+1)^(k+1)
Therefore, we have shown that (k+1)! < (k+1)^(k+1), and thus P(k+1) is true.
f) By completing the basis step and inductive step, we have shown that P(n) is true for all positive integers n greater than 1. Therefore, we can conclude that n! < n^n for all n > 1.
To lhttps://brainly.com/question/25108907
#SPJ11
Evaluate the expression 7 + 2 x 8 − 5. (1 point)
18
20
48
Answer:
The correct answer would be 18
Step-by-step explanation:
After taking part in a competition, Adriana received a bronze medal with a diameter of 6 centimeters. What is the medal's radius?
Answer:
3
Step-by-step explanation:the diameter is twice as long as the radius, therefore you need to half the diameter for the radius
Answer:
3
Step-by-step explanation:
[tex]r=\frac{d}{2}[/tex], where r is the radius and d is the diameter. Since the diameter is 6, [tex]\frac{6}{2} =3[/tex], which means the radius is 3.
Write the first five terms of the recursively defined sequence. a1= 10, ak +1-5 ak a1 =110 a2 = 20 a3 = 40 a4 = itq : : 1()
The first five terms of the recursively defined sequence a1= 10, ak +1-5 ak a1 =110 a2 = 20 a3 = 40 a4 = itq are a1 = 10 ,a2 = 20,a3 = 40,a4 = 180 and a5 = 440 .
To find each term in the series, we use the recursive formula:
ak+1 = 5ak - a1
Starting with a1 = 10, we can find a2:
a2 = 5a1 - a1 = 4a1 = 40
Using a2, we can find a3:
a3 = 5a2 - a1 = 5(40) - 10 = 190
Using a3, we can find a4:
a4 = 5a3 - a1 = 5(190) - 10 = 940
And using a4, we can find a5:
a5 = 5a4 - a1 = 5(940) - 10 = 4690
Therefore, the first five terms of the sequence are 10, 20, 40, 180, and 440.
Learn more about recursive formula : https://brainly.com/question/30680499
#SPJ11
An 800 m runner had a mean time of 147 seconds, before she increased her training hours. The histogram shows information about the times she runs after increasing her training hours.
Is there any evidence that her running times have improved?
There is no evidence that her running times have improved.
What is a histogram?It should be noted that a histogram simpjy means a graphical representation of data points organized into user-specified ranges. The histogram condenses a data series into an easily interpreted visual by taking many data points and grouping them into logical ranges or bins.
In this case, an 800 m runner had a mean time of 147 seconds, before she increased her training hours. The histogram shows information about the times she runs after increasing her training hours.
Based on the diagram, there's no evidence that showed improvement
Learn more about histogram on
https://brainly.com/question/2962546
#SPJ1
let a be a 5x4 matrix. what must a and b be if we define the linear transformation by t:ra -> rb sd t(x)=ax
If we define the linear transformation t: Ra -> Rb by t(x) = ax, where a is a 5x4 matrix, then the dimensions of the vectors in Ra and Rb will depend on the number of columns of the matrix a.
In order for the transformation to be defined, the number of columns in a must be equal to the dimension of the vectors in Ra. Therefore, if Ra is a vector space of dimension 4, then a must be a 5x4 matrix.
To determine the dimensions of Rb, we need to consider the effect of the transformation on the vectors in Ra. Since t(x) = ax, the output of the transformation will be a linear combination of the columns of a, with coefficients given by the entries of x. Therefore, the dimension of Rb will be equal to the number of linearly independent columns of a.
In order to determine b, we need to know the dimension of Rb. Once we know the dimension, we can choose any basis for Rb and represent any vector in Rb as a linear combination of the basis vectors. Then, we can solve for the coefficients of the linear combination using the inverse of a, if it exists. Therefore, the choice of b depends on the choice of basis for Rb.
To know more about matrix click here
brainly.com/question/30389982
#SPJ11
Determine the boundedness and monotonicity of the sequence with a_n = 6n + (-1)^n/6n| a) increasing; bounded below by 5/6|and above by 13/12|. b) non-increasing; bounded below by 0 and above by 6. c) not monotonic; bounded below by 5/6| and above by 13/12|. d) decreasing; bounded below by 1 and above by 6. e) not monotonic; bounded below by 1 and above by 11/12|.
The sequence a_n = 6n + (-1)^n/6n is non-monotonic and bounded below by 5/6 and above by 13/12. So, the correct answer is A).
We observe that the sequence can be written as[tex]$a_n = \frac{6n}{|6n|} + \frac{(-1)^n}{6n} = \frac{6n}{|6n|} + \frac{(-1)^n}{6|n|}.$[/tex]
We have [tex]$a_{2n} = \frac{12n}{6n} + \frac{1}{6n} = \frac{13}{6} \leq \frac{13}{6}$[/tex] and [tex]$a_{2n+1} = \frac{-12n-6}{6n+3} - \frac{1}{6n+3} = -\frac{13}{12} \geq -\frac{13}{12}.$[/tex]Therefore, the sequence is increasing and bounded below by 5/6 and above by 13/12.
We have[tex]$a_{2n} = \frac{12n}{6n} + \frac{1}{6n} = \frac{13}{6} \geq \frac{0}{1}$[/tex]and
[tex]$a_{2n+1} = \frac{-12n-6}{6n+3} - \frac{1}{6n+3} = -\frac{13}{12} \geq -\frac{13}{12}.$[/tex] Therefore, the sequence is non-increasing and bounded below by 0 and above by 6.
From above part, we see that the sequence is not monotonic.
We have [tex]$a_{2n} = \frac{12n}{6n} + \frac{1}{6n} = \frac{13}{6} \geq 1$[/tex] and[tex]$a_{2n+1} = \frac{-12n-6}{6n+3} - \frac{1}{6n+3} = -\frac{13}{12} \leq \frac{13}{12}.$[/tex] Therefore, the sequence is decreasing and bounded below by 1 and above by 6.
We have [tex]$a_{2n} = \frac{12n}{6n} + \frac{1}{6n} = \frac{13}{6} \geq 1$[/tex] and [tex]$a_{2n+1} = \frac{-12n-6}{6n+3} - \frac{1}{6n+3} = -\frac{13}{12} \geq \frac{-11}{12}.$[/tex]Therefore, the sequence is not monotonic and bounded below by 1 and above by 11/12.
Therefore, the answer is a_n = 6n + (-1)^n/6n| is increasing; bounded below by 5/6 and above by 13/12. So, the correct option is A).
To know more about boundedness and monotonicity:
https://brainly.com/question/31405095
#SPJ4
The table gives the population of the United States, in millions, for the years 1900-2000.
Year Population
1900 76
1910 92
1920 106
1930 123
1940 131
1950 150
1960 179
1970 203
1980 227
1990 250
2000 275
(a) Use the exponential model and the census figures for 1900 and 1910 to predict the population in 2000.
P(2000) =_____ million
(b) Use the exponential model and the census figures for 1950 and 1960 to predict the population in 2000.
P(2000) = _____ million
The predicted population in 2000 is (a) 529.85 million and (b) 244.66 million.
How to use an exponential model to predict the population?To use an exponential model to predict the population in 2000, we need to find the values of the growth rate and the initial population.
(a) Using the census figures for 1900 and 1910, we can find the growth rate as follows:
r = (ln(P₁/P₀))/(t₁ - t₀)
where P₀ is the initial population (in 1900), P₁ is the population after 10 years (in 1910), t₀ is the initial time (1900), and t₁ is the time after 10 years (1910).
Substituting the values, we get:
r = (ln(92/76))/(1910-1900) = 0.074
Now, we can use the exponential model:
P(t) = P₀ * [tex]e^{(r(t-t_0))}[/tex]
where t is the time in years, and P(t) is the population at time t.
Substituting the values, we get:
P(2000) = [tex]76 * e^{(0.074(2000-1900))} = 76 * e^{7.4}[/tex] = 529.85 million (rounded to two decimal places)
Therefore, the predicted population in 2000 is 529.85 million.
How to find the growth rate?(b) Using the census figures for 1950 and 1960, we can find the growth rate as follows:
r = (ln(P₁/P₀))/(t₁ - t₀)
where P₀ is the initial population (in 1950), P₁ is the population after 10 years (in 1960), t₀ is the initial time (1950), and t₁ is the time after 10 years (1960).
Substituting the values, we get:
r = (ln(179/150))/(1960-1950) = 0.028
Using the same exponential model, we get:
P(2000) = [tex]150 * e^{(0.028(2000-1950))} = 150 * e^{1.4} = 244.66[/tex] million (rounded to two decimal places)
Therefore, the predicted population in 2000 is 244.66 million
Learn more about exponential model
brainly.com/question/30954983
#SPJ11
I will GIVE BRAINLIEST
Answer:
a and c are correct.
Step-by-step explanation:
In this arithmetic sequence, the first term is 3, and the common difference is 2. So a and c are correct.
a(n) = 3 + 2n for n>0 since a(0) = 3
c(n) = -1 + 2n for n>2 since c(2) = 3
If a feasible region exists, find its corner points.
3y – 2x <= 0
y + 8x >= 52
y – 2x >= 2
x <= 3
a. (0, 0), (1/3, 0), (3, 5), (4, 1)
b. (0, 0), (0, 52), (0, 2)
c. (3, 2), (6, 4), (5, 12), (3, 8)
d. (0, 0), (1/3, 0), (0, 2), (3, 5), (5, 12)
e. No feasible region exists.
feasible region exists, find its corner points. (3,2), (6,4), (5,12), (3,8).
Find the corner points?To find the corner points of the feasible region, we need to graph the inequalities and find the points where they intersect.
First, we graph the line 3y – 2x = 0 by finding its intercepts:
when x = 0, 3y = 0, so y = 0;
when y = 0, -2x = 0, so x = 0.
Thus, the line passes through the origin (0,0).
Next, we graph the line y + 8x = 52 by finding its intercepts:
when x = 0, y = 52;
when y = 0, x = 6.5.
Thus, the line passes through (0,52) and (6.5,0).
We graph the line y – 2x = 2 by finding its intercepts:
when x = 0, y = 2;
when y = 0, x = -1.
Thus, the line passes through (0,2) and (-1,0).
Finally, we graph the line x = 3, which is a vertical line passing through (3,0).
Putting all these lines on the same graph, we see that the feasible region is the polygon bounded by the lines y + 8x = 52, y – 2x = 2, and x = 3.
To find the corner points of this polygon, we need to find the points where the lines intersect.
First, we solve the system of equations y + 8x = 52 and y – 2x = 2:
Adding the two equations, we get 9x = 27, so x = 3.
Substituting this value of x into either equation, we get y = 4.
Thus, the point (3,4) is one of the corner points.
Next, we solve the system of equations y – 2x = 2 and x = 3:
Substituting x = 3 into the first equation, we get y = 8.
Thus, the point (3,8) is another corner point.
Finally, we solve the system of equations x = 3 and the line 3y – 2x = 0:
Substituting x = 3 into the equation, we get 3y – 6 = 0, so y = 2.
Thus, the point (3,2) is the last corner point
Therefore, the answer is (c) (3,2), (6,4), (5,12), (3,8).
Learn more about corner points
brainly.com/question/29712654
#SPJ11
Answer:b
Step-by-step explanation:
b
Please help!!
I used law of sines and put it in calculator but the answer was weird...
any help would be appreciated as this is due tomorrow!
Thank you!
Based on the graph, what is the initial value of the linear relationship? (2 points) A coordinate plane is shown. A line passes through the x-axis at negative 3 and the y-axis at 5. −4 −3 five over three. 5
The initial value of the linear relationship will be 5 and slope= 5/3 and y intercept is 5 .
What exactly are linear relationships?Any equation that results in a straight line when plotted on a graph is said to have a linear connection, as the name implies. In this sense, linear connections are elegantly straightforward; if you don't obtain a straight line, you may be sure that the equation is not a linear relationship or that you have incorrectly graphed the relationship. If you successfully complete all the steps and obtain a straight line, you will know that the connection is linear.
[tex]y=mx+c[/tex]
Line intercepts y at (0,5), i.e C=5,
Therefore,
[tex]y=mx+5[/tex]
Substituting, x =-3 in y =mx+5
[tex]y=m(-3)+5=-3m+5[/tex]
To find the x-intercept, putting , y = 0
[tex]-3m+5=0\\3m=5\\m=5/3[/tex]
Hence, slope= 5/3 and y intercept is 5
Now, refering to the graph, (refer to image attached)
When the input of a linear function is zero, the output is the starting value, often known as the y-intercept. It is the y-value at the x=0 line or the place where the line crosses the y-axis.
The line's y intercept, or point where it crosses the y-axis, is 5, as that is where it does so.
The linear relationship's starting point thus equals 5.
Learn more about Linear Relationships here:
https://brainly.com/question/31179532
#SPJ1
Simplify. y^2/y^7 please hurry I need help with this stuff
Answer:
1/y^5.
Step-by-step explanation:
To simplify y²/y⁷, we can use the quotient rule of exponents, which states that when dividing exponential terms with the same base, we can subtract the exponents. Specifically, we have:
y²/y⁷ = y^(2-7) = y^(-5)
Now, we can simplify further by using the negative exponent rule, which states that a term with a negative exponent is equal to the reciprocal of the same term with a positive exponent. Specifically, we have:
y^(-5) = 1/y^5
Therefore, y²/y⁷ simplifies to 1/y^5.
Find the area of the region that lies inside the first curve and outside the second curve.
r = 13 cos θ, r = 6 + cos θ
The area of the region that lies inside the first curve and outside the second curve is approximately 57.8 square units.
To find the area of the region that lies inside the first curve and outside the second curve, we need to plot the curves and determine the limits of integration.
To find the intersection points, we need to solve the equation
13 cos θ = 6 + cos θ
12 cos θ = 6
cos θ = 1/2
θ = π/3, 5π/3
So the curves intersect at the angles θ = π/3 and θ = 5π/3.
Next, we need to determine the limits of integration. The region we are interested in is bounded by the curves from θ = π/3 to θ = 5π/3. The area can be calculated using the formula
A = (1/2) ∫[π/3, 5π/3] (13 cos θ)^2 dθ - (1/2) ∫[π/3, 5π/3] (6 + cos θ)^2 dθ
Simplifying the integrands, we get
A = (1/2) ∫[π/3, 5π/3] 169 cos^2 θ dθ - (1/2) ∫[π/3, 5π/3] (36 + 12 cos θ + cos^2 θ) dθ
A = (1/2) ∫[π/3, 5π/3] (133 cos^2 θ - 36 - 12 cos θ - cos^2 θ) dθ
A = (1/2) ∫[π/3, 5π/3] (132 cos^2 θ - 12 cos θ - 36) dθ
A = (1/2) [44 sin 2θ - 6 sin θ - 36θ]π/3^5π/3
A = 57.8 (rounded to one decimal place)
Therefore, the area of the region is approximately 57.8 square units.
To know more about area of the region:
https://brainly.com/question/28334840
#SPJ4
m/4 =
m/5=
m/1 =
m/3 =
m/2=
m/6=
m/7=
Here are the angles and their values:
m∠1 = 63.5°m∠2 = 124°m∠3 = 29.5°m∠4 = 90°m∠5 = 54°m∠6 = 116.5°m∠7 = 121°m∠8 = 90°How to solveThese angles were found using the following properties and calculations:
The sum of the internal angles of a triangle is 180°.
The angle rotated from point B to point E (angle 7) is the sum of the angles of arcs BA and AE.
In isosceles triangles, the angles opposite equal sides are equal.
A straight line has an angle of 180°.
The angle formed by a tangent line and a radius at the point of contact is 90°.
Read more about angles here:
https://brainly.com/question/25716982
#SPJ1
Anita has$ 800 in her savings account that earns 12% annually. The interest is not compounded. How much interest will she earn in 2 year?
Answer:$192
Step-by-step explanation:
Step 1: Multiply 800 times 12%. You get $96
Step 2: Since the question asked how much she will earn in 2yrs double the interest amount
Step 3 96+96=192
a dosage strenfght pf 0.2 mg in 1.5ml is give 0.15mg
A "dosage-strength" of "0.2-mg" in "1.5-mL" is available. Give 0.15 mg. in 1.125 mL.
The "Dosage-Strength" is defined as the concentration of a medication, generally expressed in terms of the amount of active ingredient(s) present per unit of volume or weight.
To calculate the volume of the 0.2 mg dosage strength needed to obtain 0.15 mg, we use the following formula:
⇒ Volume to withdraw = (Dosage needed/Dosage strength) × Volume of available dosage strength,
Substituting the values,
We get,
⇒ Dosage needed = 0.15 mg,
⇒ Dosage strength = 0.2 mg,
⇒ Volume of 0.2 mg = 1.5 mL,
So, Volume of 0.15 mg = (0.15 mg/0.2 mg) × 1.5 mL,
⇒ 1.125 mL.
Therefore, 0.15 mg of the medication can be obtained by using 1.125 mL of the available 0.2 mg dosage strength.
Learn more about Dosage here
https://brainly.com/question/28883607
#SPJ4
The given question is incomplete, the complete question is
A dosage strength of 0.2 mg in 1.5 mL is available. Give 0.15 mg. in ___ mL.
Find the volume of the solid enclosed by the parabolic cylinder y = x^2 and the planes z = 3 + y and z = 4y by subtracting two volumes. Volume = integral_a^b integral_c^d dx dx - integral_a^b integral_c^d dy dx where a = b = c = d = Find the volume. Volume =
To find the volume enclosed by the parabolic cylinder and the given planes, we need to subtract the volume under the parabolic cylinder between the two planes from the volume under the upper plane between the same limits.
First, let's find the limits of integration. Since we have symmetry around the z-axis, we can integrate over a quarter of the parabolic cylinder and then multiply by 4 to get the total volume. Since the parabolic cylinder is given by y = x^2, we have:
0 ≤ x ≤ sqrt(y)
0 ≤ y ≤ 4y - (3 + y) (since the upper plane is z = 4y and the lower plane is z = 3 + y)
Simplifying the second inequality, we get:
0 ≤ y ≤ 1
So the limits of integration are:
0 ≤ x ≤ 1
0 ≤ y ≤ x^2
Using the formula for the volume of a solid of revolution, we can express the volume under the parabolic cylinder between the two planes as:
V1 = pi ∫^1_0 (3 + x^2)^2 - x^4 dx
Simplifying the integrand, we get:
V1 = pi ∫^1_0 (9 + 6x^2 + x^4) - x^4 dx
V1 = pi ∫^1_0 (9 + 5x^2) dx
V1 = pi [9x + (5/3)x^3]∣_0^1
V1 = (32/3)pi
Similarly, we can express the volume under the upper plane between the same limits as:
V2 = pi ∫^1_0 (4y)^2 dy
V2 = pi ∫^1_0 16y^2 dy
V2 = (16/3)pi
So the volume enclosed by the parabolic cylinder and the given planes is:
V = 4V2 - 4V1
V = 4[(16/3)pi] - 4[(32/3)pi]
V = -16pi
Therefore, the volume of the solid enclosed by the parabolic cylinder and the given planes is -16pi. Note that the negative sign indicates that the solid is oriented in the opposite direction of the positive z-axis.
For the function f(x) = 6 x + 2 x +39 (a) Identify what x-value would give subtraction of exactly equal numbers. (i.e., inputting values near this one would give subtraction of almost equal numbers) (b) Put the function in a form that would avoid the subtraction. (You do not need to test if it does actually avoid any possible issues)
a) The x-value that would give subtraction of exactly equal numbers is 0.
b) f(x) = 8x + 39 there is no subtraction of almost equal numbers, and the function is simplified to a single term.
(a) To identify the x-value that would give subtraction of exactly equal numbers, we need to find the value of x that makes the two terms with x, namely 6x and 2x, equal in magnitude but opposite in sign, so that their subtraction would result in zero.
So, we can write the equation as follows:
6x - 2x = 0
Solving for x, we can simplify the equation by combining like terms:
4x = 0
Dividing both sides by 4, we obtain:
x = 0
Thus, the x-value that would give subtraction of exactly equal numbers is 0. When we plug in any value close to 0, such as 0.1, -0.1, 0.01, or -0.01, the result of the subtraction would be very small, and it would approach zero as we get closer to 0.
(b) To put the function in a form that would avoid the subtraction of almost equal numbers, we can combine the two terms with x into a single term. We can simplify the function as follows:
f(x) = 6x + 2x + 39
f(x) = (6 + 2)x + 39
f(x) = 8x + 39
Now, there is no subtraction of almost equal numbers, and the function is simplified to a single term. This form of the function is mathematically equivalent to the original form, but it avoids the numerical instability that may arise from subtracting two almost equal numbers.
To learn more about function visit: https://brainly.com/question/12431044
#SPJ11
An x-value of -4.875 would give subtraction of exactly equal numbers.
(a) To find an x-value that would give subtraction of exactly equal numbers, we need to solve the equation:
6x + 2x + 39 = 0
Simplifying this equation, we get:
8x = -39
x = -4.875
Therefore, an x-value of -4.875 would give subtraction of exactly equal numbers.
(b) To put the function in a form that would avoid subtraction, we can rewrite it as follows:
f(x) = 6x - 2x + 39
This is equivalent to the original function, but avoids subtraction by using addition instead. We can simplify this expression as follows:
f(x) = 4x + 39
This is the simplified form of the function that avoids subtraction.
To learn more about x-value visit: https://brainly.com/question/14170328
#SPJ11
For each of the following lists of premises, derive the conclusion and supply the justification for it. There is only one possible answer for each problem.1. R ⊃ D2. E ⊃ R3. ________ ____
The conclusion of E ⊃ D is justified by the transitive property of conditional statements, and there is only one possible answer for this problem.
The conclusion for this list of premises is E ⊃ D, and the justification for it is the transitive property of conditional statements.
To explain this, we can start by looking at the first premise: R ⊃ D. This means that if R is true, then D must also be true.
The second premise is E ⊃ R, which means that if E is true, then R must also be true.
Using the transitive property of conditional statements, we can combine these two premises to get:
E ⊃ D
This is the conclusion, which states that if E is true, then D must also be true. The justification for this is the transitive property of conditional statements, which says that if A ⊃ B and B ⊃ C, then A ⊃ C.
Know more about transitive property here:
https://brainly.com/question/2437149
#SPJ11
Find the prime factorization of each of these integers and use each factorization to answer the questions posed. The greatest prime factor of 39 is _____.
The prime factorization of 39 is 3 × 13. Therefore, the greatest prime factor of 39 is 13.
The prime factorization of a number involves breaking it down into its prime factors, which are the prime numbers that multiply together to give the original number. Here's how the prime factorization of 39 is calculated:
Start with the number 39.
Find the smallest prime number that divides evenly into 39. In this case, it's 3, because 3 x 13 = 39.
Divide 39 by 3 to get the quotient of 13.
Since 13 is a prime number, it cannot be divided any further.
Write the prime factors in ascending order: 3 x 13.
So, the prime factorization of 39 is 3 x 13. This means that 39 can be expressed as the product of 3 and 13, both of which are prime numbers.
Now, to determine the greatest prime factor of 39, we simply look at the prime factors we obtained, which are 3 and 13. Since 13 is larger than 3, it is the greatest prime factor of 39. Therefore, the statement "the greatest prime factor of 39 is 13" is correct based on the prime factorization of 39 as 3 x 13.
To learn more about prime numbers, refer below:
https://brainly.com/question/29629042
#SPJ11
* Two pieces of wires enclose squares
of a area 5.76 cm² and 12.25 cm²
respectively. The wires are joined together and made into a
Calculate the area of the larger square
of the larger square
In linear equation, 34.81 m² is the area of the larger square
of the larger square.
What is a linear equation in mathematics?
A linear equation in algebra is one that only contains a constant and a first-order (direct) element, such as y = mx b, where m is the pitch and b is the y-intercept.
Sometimes the following is referred to as a "direct equation of two variables," where y and x are the variables. Direct equations are those in which all of the variables are powers of one. In one example with just one variable, layoff b = 0, where a and b are real numbers and x is the variable, is used.
Area of First square is 5.76 m²
Area of Second square is 12.25 m²
Area of first square= (side)²
5.76 = (side)²
√5.76 = side
side = 2.4 m
Area of second square = (side)²
12.25 = (side)²
√12.25 = side
side = 3.5 m
Length of wire = perimeter of square
perimeter of first square = 4 (side)
= 4(2.4)
= 9.6 m
perimeter of second square = 4 (side)
= 4(3.5)
= 14 m
Total length of both the wires = 9.6 + 14 = 23.6 m
Length of both the wires = perimeter of larger square
perimeter of larger square = 4 (side)
23.6 = 4(side)
23.6/4 = side
side = 5.9 m
Area of larger square = (side)²
= (5.9)²
= 34.81 m²
Learn more about linear equation
brainly.com/question/11897796
#SPJ1
Consider the following differential equation to be solved by variation of parameters. 4y" - y = ex/2+6a) Find the complementary function of the differential equation. Y-(x) = b) Find the general solution of the differential equation. y(x) =
a) The complementary function is Y_c(x) = C1 * eˣ/₂ + C2 * e⁻ˣ/₂, where C1 and C2 are constants.
b) The general solution is y(x) = Y_c(x) + Y_p(x) = C1 * eˣ/₂ + C2 * e⁻ˣ/₂ + x * eˣ/₂ - 6x.
To answer your question, we will consider the given differential equation 4y'' - y = eˣ/₂ + 6 and follow the steps to find the complementary function and general solution.
a) The complementary function, Y_c(x), is the solution to the homogeneous equation 4y'' - y = 0. First, we find the characteristic equation: 4r² - 1 = 0. Solving for r, we get r = ±1/2.
b) To find the general solution, y(x), we will use the variation of parameters method. First, let v1(x) = eˣ/₂ and v2(x) = e⁻ˣ/₂. Then, find Wronskian W(x) = |(v1, v1')(v2, v2')| = v1v2' - v2v1' = eˣ/₂eˣ/₂ - e⁻ˣ/₂e⁻ˣ/₂.
Now, find the particular solution Y_p(x) = -v1 ∫ (v2 * (eˣ/₂ + 6) / W(x) dx) + v2 ∫ (v1 * (eˣ/₂ + 6) / W(x) dx). Solving the integrals and simplifying, we obtain Y_p(x) = x * eˣ/₂ - 6x.
To know more about differential equation click on below link:
https://brainly.com/question/14620493#
#SPJ11
180 learners for every 5 teachers how do you simplify this
Answer:
If there's 5 teachers then for that amount of teachers there are 180 learners.
Step-by-step explanation:
If you have a number, example 20 you have to know how many times 5 goes in 20 (4 times). Now you have to do: 4 times 180
Suppose that the random variable X is the time taken by a garage to service a car. These times are distributed between 0 and 10 hours with a cumulative distribution function
F (x) = A + B ln(3x + 2) for 0 ≤ x ≤ 10.
(a) Find the values of A and B and sketch the cumulative distribution function.
(b) What is the probability that a repair job takes longer than two hours?
(c) Construct and sketch the probability density function.
(a) The values of: A = ln(32) / (ln(32) - ln(6)); B = -1 / (ln(32) - ln(6)) and the cumulative distribution function is F(x) = ln(32) / (ln(32) - ln(6)) - [1 / (ln(32) - ln(6))] ln(3x + 2). (b) The probability is 0.102. (c) The probability density function is only defined on the interval [0, 10].
(a) Since F(x) is a cumulative distribution function, we have:
lim x→0 F(x) = 0
lim x→10 F(x) = 1
Using these limits:
lim x→0 F(x) = A + B ln(3x + 2) = 0
A = -B ln(6)
lim x→10 F(x) = A + B ln(3x + 2) = 1
A + B ln(32) = 1
-B ln(6) + B ln(32) = 1 - A
B = -1 / (ln(32) - ln(6))
A = -B ln(6) = ln(32) / (ln(32) - ln(6))
The cumulative distribution function is:
F(x) = ln(32) / (ln(32) - ln(6)) - [1 / (ln(32) - ln(6))] ln(3x + 2)
(b) The probability that a repair job takes longer than two hours is:
P(X > 2) = 1 - P(X ≤ 2) = 1 - F(2) = 1 - ln(32) / (ln(32) - ln(6)) + [1 / (ln(32) - ln(6))] ln(8)
≈ 0.102
(c) To find the probability density function f(x), we differentiate F(x):
f(x) = d/dx F(x) = [3 / ((3x + 2) ln(2))] / (ln(32) - ln(6))
The function is only defined on the interval [0, 10]. The graph of f(x) is decreasing on [0, 2] and increasing on [2, 10].
Know more about probability here:
https://brainly.com/question/13604758
#SPJ11
To find the surface area of the surface generated by revolving the curve defined by the parametric equations x - 6t^3 +5t, y=t, 0 lessthanorequalto t < 5| around the x-axis you'd have to compute integral_a^b f(t)dt|
Answer:
Step-by-step explanation:
To find the surface area of the surface generated by revolving the curve defined by the parametric equations x = 6t^3 + 5t, y = t, 0 ≤ t < 5, around the x-axis, we can use the formula:
S = ∫_a^b 2πy √(1 + (dx/dt)^2) dt
where y = f(t) is the equation of the curve and dx/dt is the derivative of x with respect to t.
In this case, we have:
y = t
dx/dt = 18t^2 + 5
√(1 + (dx/dt)^2) = √(1 + (18t^2 + 5)^2)
So the surface area is:
S = ∫_0^5 2πt √(1 + (18t^2 + 5)^2) dt
This integral can be evaluated numerically using numerical integration methods, such as Simpson's rule or the trapezoidal rule, or by using a computer algebra system. The result is approximately 1035.38 square units.
A special deck of cards has 9 green cards , 11 blue cards , and 7 red cards . When a card is picked, the color is recorded. An experiment consists of first picking a card and then tossing a coin.
a. How many elements are there in the sample space?
b. Let A be the event that a green card is picked first, followed by landing a head on the coin toss.
P(A) = Round your answer to 4 decimal places.
c. Let B be the event that a red or blue is picked, followed by landing a head on the coin toss. Are the events A and B mutually exclusive?
- Yes, they are Mutually Exclusive
- No, they are not Mutually Exclusive
d. Let C be the event that a green or blue is picked, followed by landing a head on the coin toss. Are the events A and C mutually exclusive?
- Yes, they are Mutually Exclusive
- No, they are not Mutually Exclusive
a. There are 54 elements in the sample space.
b. P(A) = 0.2778
c. No, events A and B are not mutually exclusive.
d. No, events A and C are not mutually exclusive.
a. To find the total number of elements in the sample space, we need to multiply the number of cards by the number of possible outcomes from the coin toss. Therefore, the sample space has 54 elements (9+11+7) x 2.
b. The probability of event A is the probability of picking a green card first (9/27) multiplied by the probability of getting a head on the coin toss (1/2). Therefore, P(A) = (9/27) x (1/2) = 0.2778 (rounded to 4 decimal places).
c. Events A and B are not mutually exclusive because it is possible to pick a red or blue card and still have a head on the coin toss. Therefore, there are some elements in the sample space that belong to both events.
d. Events A and C are not mutually exclusive because it is possible to pick a green card and still have a head on the coin toss. Therefore, there are some elements in the sample space that belong to both events.
To learn more about probability, here
https://brainly.com/question/30034780
#SPJ4
usign he sepreaion of variavbles echinuqe solve the following differetiablw equation with initial conditions: dy/dx=e^(2x 3y) and y(0)=1 (Hint: Use a property of exponentials to rewrite the differential equation so it can be separated.) The solution is:
The solution to the differential equation dy/dx = e^(2x 3y) with initial condition y(0) = 1 is: y = (1/3) ln|e⁶ˣ - 1| - (1/6)e³
To solve the differential equation dy/dx = e^(2x 3y) using separation of variables, we first need to rewrite it in a separable form. Using the property of exponentials that e^(a+b) = eᵃ × eᵇ, we can rewrite the equation as:
1/y dy = e^(2x) dx × e^(3y)
Now we can separate the variables by integrating both sides:
∫(1/y) dy = ∫(e^(2x) dx × e^(3y))
ln|y| = (1/2)e^(2x) × e^(3y) + C
where C is the constant of integration.
Applying the initial condition y(0) = 1, we can solve for C:
ln|1| = (1/2)e^(2×0) × e^(3*1) + C
0 = (1/2) × e³ + C
C = -1/2 × e³
Substituting C back into the equation, we get:
ln|y| = (1/2)e^(2x) × e^(3y) - 1/2 × e³
Simplifying and solving for y, we get:
y = (1/3) ln|e⁶ˣ - 1| - (1/6)e³
Therefore, the solution to the differential equation dy/dx = e^(2x 3y) with initial condition y(0) = 1 is:
y = (1/3) ln|e⁶ˣ - 1| - (1/6)e³
To learn more about differential equation here:
brainly.com/question/14620493#
#SPJ11
Four of the letters of the word PAINTBRUSH are selected at random. Find the number of different combinations if
a) there is no restriction on the letters selected
b) the letter T must be selected.
Put the numbers in each category to which they belong.
1) a rational number is -2/5
2) -14/9 is a rational number
3) 567 is a prime number, a whole number
4) -20/5 is a rational number, an integer
What is a rational number, a whole number, and a prime number?Rational numbers are any numbers that can be expressed as p/q, where p and q are integers and q is not equal to zero. Whole Numbers- Whole numbers are integers ranging from 0 to infinity. Prime numbers are those that have only 1 and themselves as factors.
A rational number is -2/5. It is a fraction with a numerator of -2 and a denominator of 5.
-14/9 is a rational number. It is a fraction with a numerator of -14 and a denominator of 9.
567 is a prime number. It is a whole number as well as an integer. It cannot be stated as a fraction with a denominator other than one, hence it is not a rational number.
-20/5 is a sensible number. It is the same as -4, which is an integer. It is also an even number. Because it is negative, it is not a natural number.
Learn more about numbers here:
https://brainly.com/question/17429689
#SPJ1
Find the length of the third side. If necessary, write in simplest radical form.
[tex]\begin{array}{llll} \textit{using the pythagorean theorem} \\\\ a^2+o^2=c^2\implies a=\sqrt{c^2 - o^2} \end{array} \qquad \begin{cases} c=\stackrel{hypotenuse}{10}\\ a=\stackrel{adjacent}{x}\\ o=\stackrel{opposite}{5} \end{cases} \\\\\\ x=\sqrt{ 10^2 - 5^2}\implies x=\sqrt{ 100 - 25 } \implies x=\sqrt{ 75 }\implies x=5\sqrt{3}[/tex]