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3 years ago

Which is true regarding the function ?

Mathematics

2 answers:

Nostrana [21]3 years ago

8 0

It’s D. In order to find y/f(x),which in this case is (10),u have to plug in the x (-6)

USPshnik [31]3 years ago

7 0

The answer is D.

F(x) = y is basically what you are looking for. You substitute x for x and find if it matches with Y. D is the only answer where the ordered pair (-6, 10) ,matches up with F(x) = y.

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What set of numbers do the following belong out of -18 and 0

ella [17]

Answer:

9 , 2 , and 6 .

Step-by-step explanation:

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3 years ago

How large a sample should be selected to provide a 95% confidence interval with a margin of error of 6? Assume that the populati

marshall27 [118]

Using the z-distribution, it is found that a sample of 171 should be selected.

<h3>What is a z-distribution confidence interval?</h3>

The confidence interval is:

$\overline{x} \pm z\frac{\sigma}{\sqrt{n}}$

The margin of error is:

$M = z\frac{\sigma}{\sqrt{n}}$

In which:

$\overline{x}$ is the sample mean.

z is the critical value.

n is the sample size.

$\sigma$ is the standard deviation for the population.

For this problem, the parameters are:

$z = 1.96, \sigma = 40, M = 6$

Hence we solve for n to find the needed sample size.

$M = z\frac{\sigma}{\sqrt{n}}$

$6 = 1.96\frac{40}{\sqrt{n}}$

$6\sqrt{n} = 40 \times 1.96$

$\sqrt{n} = \frac{40 \times 1.96}{6}$

$(\sqrt{n})^2 = \left(\frac{40 \times 1.96}{6}\right)^2$

n = 170.7.

Rounding up, a sample of 171 should be selected.

More can be learned about the z-distribution at brainly.com/question/25890103

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2 years ago

Simplify<br> PLZ HELP QUICKLY

elena-14-01-66 [18.8K]

Answer:

Step-by-step explanation:

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3 years ago

What is the length of the hypotenuse of a right triangle with legs that are 7 and 8 inches

Mrrafil [7]

B). 10.63
Because 7^2=49 and 8^2=64 then 49+64=113 then the square root of 113 is 10.63

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3 years ago

Read 2 more answers

What is the y in 10.3=0.6y

ollegr [7]

Hello, you would divide 10.3 by 0.6 to get 17.166 repeating. So y equals 17.166.

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3 years ago