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2 years ago

11

What is the volume of the given picture below? ( HELP PLEASE )

1 answer:

AlexFokin [52]2 years ago

4 0

It's 904.78.

The formula for the volume of a sphere is 4/3(pi)r^3. The diameter is 12. Half it to get the radius, which is 6. Plug 6 into the formula. The result is 904.77868.

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A mirror with a reflecting surface that caves inward is said to be

Marysya12 [62]

C. CONCAVE

A mirror with a reflecting surface that caves inward is said to be CONCAVE.

Clue: caves inward. )(

Convex has an outline of surface that cave outward. It is like the outside of the circle or sphere. ()

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3 years ago

Multiply 2x(x2 + 5).<br> 2x3 + 10x2<br> 2x3 + 10x<br> 2x2 + 10x<br> 2x3 + 5x

Alex_Xolod [135]

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3 years ago

Two months ago, Marty’s dog weighed 3712 pounds. The dog was put on a diet and exercise plan and now weighs 2914 pounds. How muc

deff fn [24]

Answer:

Step-by-step explanation:

3712-2914= 798 pounds

5 0

2 years ago

Read 2 more answers

Researchers are studying the distribution of subscribers to a certain streaming service in different populations. From a random

Katen [24]

Answer:

$CI = (0.17 - 0.27)\± 1.65\sqrt{\frac{(0.17)*(0.83) + (0.27)*(0.73)}{200}}$

Step-by-step explanation:

Given

$n = 200$

$x_1 = 34$ -- City C

$x_2 = 54$ --- City K

Required

Determine the 90% confidence interval

This is calculated using:

$CI = \bar x \± z\frac{\sigma}{\sqrt n}$

Calculating $\bar x$

$\bar x = \bar x_1 - \bar x_2$

$\bar x = \frac{x_1}{n} - \frac{x_2}{n}$

$\bar x = \frac{34}{200} - \frac{54}{200}$

$\bar x = 0.17 - 0.27$

For a 90% confidence level, the z-score is 1.65. So:

$z = 1.65$

Calculating the standard deviation $\sigma$

$\sigma = \sqrt{(\bar x_1)*(1 - \bar x_1) + (\bar x_2)*(1 - \bar x_2) }$

So:

$\sigma = \sqrt{(0.17)*(1 - 0.17) + (0.27)*(1 - 0.27) }$

$\sigma = \sqrt{(0.17)*(0.83) + (0.27)*(0.73)}$

So:

$CI = (0.17 - 0.27)\± 1.65\frac{\sqrt{(0.17)*(0.83) + (0.27)*(0.73)}}{\sqrt {200}}$

$CI = (0.17 - 0.27)\± 1.65\sqrt{\frac{(0.17)*(0.83) + (0.27)*(0.73)}{200}}$

7 0

2 years ago

Help me solve this problem please

allochka39001 [22]

Answer:

Step-by-step explanation:

4^2+x^2 = 15^2

x^2 = 15^2 - 4^2 = 225-16 = 209

x=sqrt(209)

x = 14.46

6 0

3 years ago