3 years ago

Please help!! Will give brainiest!1 Im so confused

Mathematics

1 answer:

Lubov Fominskaja [6]3 years ago

5 0

Answer:

i dont know

Step-by-step explanation:

You might be interested in

Write a story about temperature, money or game scores to represent each number sentence.

Semenov [28]

C is the answer because its longer and a big number sentence

8 0

3 years ago

Read 2 more answers

To begin an indirect proof you seen the converse of what you intend to prove it's true

Setler [38]

A.) True because I know it is

3 0

4 years ago

Find the product of:<br><br><img src="https://tex.z-dn.net/?f=%20%7Bp%7D%5E%7B5%7D%20%20%5Ctimes%20%20%7Bp%7D%5E%7B%20-%204%7D%2

Ymorist [56]

Answer:

${p}^{5} \times {p}^{ - 4} \times {p}^{3}$

$= p {}^{5 - 4 + 3}$

$= p {}^{4}$

3 0

3 years ago

Read 2 more answers

The rectangle below has a height of 5 meters and a base of 8 meters. What is the area of the triangle inscribed inside?

pogonyaev

Answer:

Step-by-step explanation:

formula for triangle= 1/2*base*height

=1/2*8*5

=20

8 0

3 years ago

Nadia wants to estimate the mean driving range for her company's new electric vehicle. She'll sample vehicles and measure each o

Andrew [12]

Using the z-distribution, it is found that the smallest sample size required is given by:

B) 7 vehicles.

<h3>What is the margin of error for a z-distribution confidence interval?</h3>

It is given by:

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

In which:

z is the critical value.

$\sigma$ is the population standard deviation.

n is the sample size.

In this problem, we have a 90% confidence level, hence $\alpha = 0.9$ , z is the value of Z that has a p-value of $\frac{1+0.9}{2} = 0.95$ , so the critical value is z = 1.645.

The margin of error and the population standard deviation are given by, respectively:

$M = 10, \sigma = 15$ .

Then, we solve for n to find the needed sample size.

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

$10 = 1.645\frac{15}{\sqrt{n}}$

$10\sqrt{n} = 1.645 \times 15$

$\sqrt{n} = 1.645 \times 1.5$

$(\sqrt{n})^2 = (1.645 \times 1.5)^2$

$n = 6.1$

Rounding up, 7 vehicles have to be sampled, hence option B is correct.

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

7 0

3 years ago