3 years ago

PLEASE HELP FOR NUMBER 26 AND 27

Mathematics

1 answer:

ivann1987 [24]3 years ago

5 0

Answer:

Step-by-step explanation:

You can't see the diagram for 27. We do not know what the entire question consists of.

This is a calculator question. Your calcualator has a ^ or y^x or x^y key.

To solve this problem, use one of these keys.

225 y^x 0.5 = 15 There are two answers: - 15 and 15. The question only wants 15.

If you repost 27, I'll come back and do it.

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Phoenix [80]

Answer

a. The volume is multiplied by 4

b. The volume is doubled

Explanation

a. The volume of a cone with radius r and height h is $\pi r^2 h/3$ . If the radius is doubled, the new volume will be $\pi (2r)^2h/3$ , which is equal to $4\pi r^2h/3$ . This means that the volume is multiplied by 4.

b. The volume of a cone with radius r and height h is $\pi r^2 h/3$ . If the height is doubled, the new volume will be $\pi r^2(2h)/3$ , which is equal to $2\pi r^2 h/3$ . This means that the volume is multiplied by 2.