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2 years ago

Sceenshot please answer it math problem

Mathematics

1 answer:

Inessa05 [86]2 years ago

7 0

To be honest I don’t know but I just looked up diameter and I think the second one pan is right please understand I’m in sixth grade

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Solve the formula for one of its variables using addition subtraction and/ or division

Sati [7]

One way of doing this would be to look at the πr² as if it were a single term. Then we could divide both sides by πr², which leaves h = V/πr².

3 0

3 years ago

A computer manufacturing company has sent a mail survey to 2,800 of its randomly selected customers that have purchased a new la

vodka [1.7K]

Answer:

The 96% confidence interval for the population proportion of customers satisfied with their new computer is (0.77, 0.83).

Step-by-step explanation:

We have to calculate a 96% confidence interval for the proportion.

We consider the sample size to be the customers that responded the survey (n=800), as we can not assume the answer for the ones that did not answer.

The sample proportion is p=0.8.

$p=X/n=640/800=0.8$

The standard error of the proportion is:

$\sigma_p=\sqrt{\dfrac{p(1-p)}{n}}=\sqrt{\dfrac{0.8*0.2}{800}}\\\\\\ \sigma_p=\sqrt{0.0002}=0.014$

The critical z-value for a 96% confidence interval is z=2.054.

The margin of error (MOE) can be calculated as:

$MOE=z\cdot \sigma_p=2.054 \cdot 0.014=0.03$

Then, the lower and upper bounds of the confidence interval are:

$LL=p-z \cdot \sigma_p = 0.8-0.03=0.77\\\\UL=p+z \cdot \sigma_p = 0.8+0.03=0.83$

The 96% confidence interval for the population proportion is (0.77, 0.83).

4 0

3 years ago

X2+7x=-8 identity c of the following quadratic equation

malfutka [58]

Answer:

(x-7). (x-1) this is this

8 0

3 years ago

What is the experimental probability that you will get exactly 2 out of the three correct

Dmitry [639]

Oh ok so the answer is .666666666666 etc infinite 6s

7 0

3 years ago

Pls answer. and explain why

Alborosie

Answer:

13.5 yards

Step-by-step explanation:

as They have asked for the width (only).

9 is width and they told 2 INCHES is 3 YARDS So

$3 \div 2 = 1.5$

and the normal

$9 \times 1.5 = 13.5$

and area is

$15 \times 1.5 = 22.5 \times 13.5 = 362.75 \: yards$

Perimeter is

$2 (13.5 + 22.5) = 72yards$

Sorry if its wrong

6 0

3 years ago

Read 2 more answers