Estimate y when x = 8 from the best fitted straight line y = 13.06 + 0.6x.

Answer:

A. 120 degrees.

B. 0 degrees.

Answer: 1/4

Step-by-step explanation:

To find the probability that Robbie will pull a blue marble out of the bag, we need to first determine the total number of marbles in the bag. Since there are 2 blue marbles, 4 red marbles, and 2 yellow marbles, the total number of marbles in the bag is 2 + 4 + 2 = 8.

Next, we need to determine the number of blue marbles in the bag. Since there are 2 blue marbles, the number of blue marbles in the bag is 2.

Finally, we can use these numbers to calculate the probability that Robbie will pull a blue marble out of the bag. The probability is equal to the number of blue marbles divided by the total number of marbles, which is 2 / 8 = 1/4. Therefore, the probability that Robbie will pull a blue marble out of the bag is 1/4.

The equation for the line of best fit in the slope and the intercept form is given as y₁ = 1.91944X₁ - 65.8518

A straight line that minimizes the gap between it and some data is called a line of best fit. In a scatter plot containing various data points, a relationship is expressed using the line of best fit. It is a result of regression analysis and a tool for forecasting indicators and price changes.

y₁ = mX₁ + b

we have m = 1.91944

b = -65.8518

The question requires us to fill in the values that we have into the corresponding equation.

We will have

y₁ = 1.91944X₁ + (-65.8518)

y₁ = 1.91944X₁ -65.8518

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In second half of the month it rain by 1/12 of an inch.

Define Algebraic Expression

In mathematics, an expression that includes variables, constants, and algebraic operations is known as an algebraic expression (addition, subtraction, etc.)

Given,

The rainfall in Georgetown during the first half of the month was = 1/4 inch

The total rainfall for the month was = 1/3 of an inch

To get an answer for this, you need to subtract the amount of rainfall in first half from the total rainfall for the month. This would tell the how much it rained in the second half of the month.

= 1/3 - 1/4

= 4/12 - 3/12

= 1/12

Hence, In second half of the month it rain by 1/12 of an inch.

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Without more information, it is not possible to determine how long it took for Mr. Jones to have 50 mg or less of the medicine left in his body. Factors such as the type of medicine, the dosage Mr. Jones was taking, and his metabolism can all affect the amount of time it takes for the medicine to be metabolized and eliminated from his body. It is important for Mr. Jones to follow the instructions given to him by his doctor and to consult with his doctor if he has any questions or concerns.

Answer:

A or C, but A is my guess.

Step-by-step explanation:

Answer:

A.) The sum will be an even integer.

Step-by-step explanation:

The conjecture that can be made about the sum of two even integers and one odd integer is that the sum will be an even integer. This is because even integers are numbers that are divisible by 2, and odd integers are numbers that are not divisible by 2.

For example, consider the sum of the even integer 6 and the odd integer 7. The sum of these two numbers is [tex]6 + 7 = 13[/tex], which is an odd integer. However, if we add another even integer to the sum, such as 4, the resulting sum is [tex]13 + 4 = 17[/tex], which is an even integer. This shows that the sum of two even integers and one odd integer is always an even integer.

This conjecture can be proven using mathematical induction. We can start by showing that the sum of any two even integers and one odd integer is always an even integer. Then, we can assume that the sum of any n even integers and one odd integer is also an even integer. Finally, we can show that the sum of n+1 even integers and one odd integer is also an even integer, using the assumption that the sum of n even integers and one odd integer is even. This will prove that the conjecture is always true.

The graph that does not show a valid probability distribution is option A.

Probability distribution refers to the mathematical function that provides the probabilities of occurrence of different possible outcomes for an experiment. It is a mathematical description of a random phenomenon in terms of its sample space and the probabilities of events. In order to determine if a probability distribution is valid, there are two criteria that must be checked. First determine whether each probability is greater than or equal to 0 and less than or equal to 1. Secondly, determine whether the sum of all of the probabilities equals 1. If both the conditions are true, then the probability distribution is valid, otherwise, the probability distribution is not valid. Based on the provided graphs, the first condition is met for all but the second condition is untrue for option A as the sum of probability is less than 1. Hence it is not a valid probability distribution.

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The sample proportion is 0.5507, standard error is 0.0151, margin error is 0.030 and population proportion fall between 0.521<p<0.58

A.

One has 95% confidence that the interval from the lower bound to the upper bound actually does contain the true value of the population proportion.

The sample proportion, pcap = 0.5507

b) sample size, n= 1084

The standard error of the mean, or simply standard error, indicates how different the population mean is likely to be from a sample mean.

standard error, SE = [tex]\sqrt{(pcap*(1-pcap)/n)}[/tex]

SE=[tex]\sqrt{(0.5507*(1-0.5507)/1084)}[/tex]= 0.0151

Given Cl level is 95%, hence [tex]\alpha =1-0.95=0.05[/tex]

[tex]\frac{\alpha }{2}= \frac{0.05}{2}= 0.025[/tex]

Zc=Z[tex](\frac{\alpha }{2} )=1.96[/tex]

Margin of errors, in statistics, is the degree of error in results received from random sampling surveys.

Margin of error, ME = zc×SE

ME= 1.96×0.0151

ME= 0.030

c) Cl= (pcap-z×SE, pcap+z×SE)

Cl = (0.5507-1.96×0.0151, 0.5507+1.96×0.0151)

Cl= (0.521, 0.58)

0.521<p<0.58

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The factorization of the given expression is obtained as (x + 1)(x + 5).

In order to factorize an expression first find all the terms that have the common factors. Then, write those terms in the form of product of factors. This is the way to factorize an expression.

The given algebraic expression is (x + 1)²+ 3(x + 1) + x + 1

It can be factorized as follows,

(x + 1)²+ 3(x + 1) + x + 1

⇒ (x + 1)²+ 3(x + 1) + (x + 1)

⇒ (x + 1)²+ 4(x + 1)

In all the three terms the common factor is (x + 1).

Take (x + 1) as common to get,

(x + 1)(x + 1 + 4)

⇒ (x + 1)(x + 5)

Hence, the given algebraic expression can be factorized as (x + 1)(x + 5).

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The ECOA Valuations Rule requires lenders to issue a copy of the appraisal or written valuation to an applicant. This is true.

Discrimination in any way related to a credit transaction is forbidden by the Equal Credit Opportunity Act (ECOA). It covers all credit extensions, including those given to corporations, partnerships, trusts, and small businesses. The ECOA outlaws discrimination.

According to the ECOA Valuations Rule, you have three business days from the time you receive an applicant's application to inform them that they have the right to a copy of the appraisals. You must provide the applicant with copies of all appraisals and other written valuations as soon as possible.

According to the ECOA Valuations Rule, creditors must inform applicants of their right to obtain copies of appraisals and written valuations

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The ECOA Valuations Rule requires lenders to issue a copy of the appraisal or written valuation to an applicant. True or false.

The area of the given pyramid will be 144.53 ft² thus option (B) is correct.

With a base that is a polygon and sides that are three or more triangles that converge at the top.

A pyramid is a three-dimensional object in which three triangles intersect in such a way that the base side becomes a triangle.

As per the given pyramid,

Total surface area = 2 x(1/2)6 x 8 + 2 x (1/2)7 x 7.79 + 7 x 6

Total surface area = 24 + 27.265 + 42 = 144.53 ft²

Hence "The supplied pyramid will have a surface area of 144.53 feet²".

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Answer:

Step-by-step explanation:

Three sets of two-thirds can be created since each whole produces a two-thirds and one half of another two-thirds.

The number 0.666 is 2/3 in decimal notation.Consequently, there are a total of 5 components to distribute. (2+3=5) Consequently, you divide the value you want to share by five.Consequently, there are a total of 5 components to distribute. 2 + 3 = 5, therefore you divide the value you want to distribute by 5.

The two most frequent splits are 2-for-1 and 3-for-1, meaning that a stockholder receives two or three shares, respectively, for each share they currently own. When a corporation divides the number of shares that stockholders own, the market price rises in proportion.

Sixteen twenty-fourths (16/24) is a fraction that is equal to two thirds (2/3).

He cut the soap into two equal pieces, making it weigh 0.333333333 pounds.

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Answer:

The figure is an an isosceles triangle

The probability of winning a prize remains the same for,

e. n = 10 or n=20 or n = 100; the probabilities are the same.

In an experiment with two possible outcomes, the likelihood of exactly x successes on n repeated trials is known as the binomial probability (commonly called a binomial experiment).

From the information we get,

p = 0.5, So, q = 1 - 0.5 = 0.5.

If 70% of 'n' games are won then 30% of n games must be lost.

Let n = 10.

∴ [tex]P(x = 3) = ^{10}C_3p^7q^3[/tex].

[tex]P(x = 3) = ^{10}C_3(0.5)^7(0.5)^3[/tex].

P(x = 3) = 120×0.0078×0.125.

P(x = 3) = 0.117 Or 11.7% chance.

Now, Changing the value as all the 'n's are multiple of 10 and we'll have the same probability.

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Answer:

B

Step-by-step explanation:

Dont think you need this

log[(4)] = 0.60205999132

Answer:

The value of log 4 to the base 10 is 0.6020. In this article, we will discuss the value of log 4 in terms of both natural logarithm and common logarithm in the logarithmic function. Logarithms are inverse of exponential functions.

Here is the value of log 4 with respect to base-10 and base-e.

Step-by-step explanation:

Now, let us discuss finding the value of log 4 using a common and natural log functions. Also, find the log of 4 to the base 2 here.

The 99% confidence interval to estimate the population proportion of items that are defective is (0.0116, 0.1662).

Sample size , n = 90

defective items , x = 8

Sample proportion = x / n

= 8/90 = 0.0889

= 1- 0.0889 =0.9111

At 99% confidence level the z is ,

α = 1 - 0.99 = 0.01 , α/ 2 = 0.01 / 2

= 0.005

Zα/₂ = Z0.005 = 2.576 ( Using z table )

Margin of error Formula, E = Zα/2× (sqrt(((p-hat× (1 - p-hat)) /n)

= 2.575 ×sqrt((0.0889*0.9111) /90 )

E = 0.0773

A 99% confidence interval is

p-hat - E < p < p-hat + E

=> 0.0889 - 0.0773 < p < 0.0889 +0.0773

=> 0.0116 < p< 0.1662

Hence, confidence interval is (0.0116, 0.1662).

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Answer:

4xy - 30y - 30x

Step-by-step explanation:

Lets say a=answer

Solve for a:

(18x + 19y) + (13xy + 12x) + a = 17xy-11y​

18x + 19y + 13xy + 12x + a = 17xy-11y​

18x + 12x + 19y + 13xy + a = 17xy-11y​

30x + 19y + 13xy + a = 17xy-11y​

30x + 19y-19y + 13xy + a = 17xy-11y​ - 19y  ==> subtract 19y on both sides

30x + 13xy + a = 17xy-30y

30x + 13xy-13xy + a = 17xy-13xy-30y ==> subtract 13xy on both sides to

                                                                isolate a

30x + a = 4xy-30y

30x - 30x = 4xy - 30y - 30x ==> subtract 30x on both sides to isolate a

a = 4xy - 30y - 30x  ==> simplify

We know that,

With the help of example,

5/3

Numerator= number of equal parts of remaining

Denominator=total number of equal parts.

According to question.

Given data in the question,

Multiply the whole number by the denominator.

7×4=28………………. (1)

Adding 1 in numerator

28+1=29

Divide by 4 in denominator

29 divided by 4

7.25

the decimal form of 7 1/4% is 7.25

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After changing 7 1/4 percent into decimal we get, 7.25.

In mathematics, decimals can be used as an alternative to fractions. You can express a fraction in decimal form, such as 0.5, rather than writing it out as 1/2, with zero in the place of the one and five in the place of the ten. Decimus, which means tenth in Latin, is the root of the word decimal. The decimal system is also known as a base-10 system because it uses 10 as its fundamental unit.

Decimal refers to any number in the decimal system. They are employed in the expression of both whole numbers and fractions. A "." (known as a decimal point) is inserted to demarcate the whole number from the fraction. The space between the digit in the ones place and the digit in the tenth place is known as the decimal point, and it serves as the separator between them.

Given that 7 1/4 %

in proper form it will be written as

=(7×4)+1 /4

= 29/4

now dividing 29 by 4 we get

7.25

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Answer:

Step-by-step explanation:

The infinite sum of a geometric sequence is given by the formula:

S = a / (1 - r)

where a is the first term of the sequence and r is the common ratio. In this case, a = 4 and r = 4/6 = 2/3. Plugging these values into the formula above, we get:

S = 4 / (1 - 2/3) = 4 / (1/3) = 4 * 3 = 12

Therefore, the infinite sum of the geometric sequence with a = 4 and r = 2/3 is 12.

Answer:

there is no question here so how can i give you an answer?

Step-by-step explanation:

The expression for  the rate of change of A with respect to t is dA/dt = 4h * dh/dt in²/s. Option D

The formula for calculating the area of a rectangle is expressed as:

A = wh

Given that;

From the information given, we have that;

If the width is twice the height

This is represented as;

w = 2h

Then, substitute the values into the formula for area of a rectangle

A = (2h)h

A = 2h²

Then, the rate of change of area will be expressed as;

dA/dt

Take the differentiation

dA/dt = dA/dh × dh/dt

dA/dt = 4h * dh/dt in²/s

Hence, the rate is dA/dt = 4h * dh/dt in²/s

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The complete question:

A rectangle has width w inches and height h inches, where the width is twice the height. Both w and h are functions of time t, measured in seconds. If A represents the area of the rectangle, which of the following gives the rate of change of A with respect to t ?

A. dA/dt=4h in/sec

B. dA/dt=3h dh/dt in^2/sec

C. dA/dt=4h dh/dt in/sec

D. dA/dt=4h dh/dt in^2/sec

The number of balls in the basket at first is 35.

A basket contained 4 times as many blue balls as red balls.

Therefore,

let

x = red balls

Hence,

number of blue balls = 4x

After 21 blue balls were taken away, there were twice as many red balls as blue balls.

2(4x - 21) =  x

8x - 42 = x

subtract 8x from both sides of the equation

8x - 42 = x

8x - 8x - 42 = x - 8x

-42 = - 7x

divide both sides by -7

x = -42 / -7

x = 6

Therefore,

red balls = 7

blue balls = 4(7) = 28

Total balls = 35

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Answer:

35

Step-by-step explanation:

don't ask