Question

math

Answer 1

ooo now they want us to find the radius

volume = 1/3 * pi * height * r^2

so volume = 3.6
height = 4.2

radius = ??

so if you replace the numbers into the equation, first let's get r^2 all by itself
and then to get 'r' you have to take the square root

3.6 = 1/3 * pi * 4.2 * r^2

so what is 1/3 * pi * 4.2 = ??

Answer 2

4.4?

Answer 3

yes, but let's keep more digits until we get to the end

so now we have

3.6 = 4.398 * r^2

are you following along?

so now to get r^2 all by itself, we have to divide 4.398 on both sides

so what is

3.6 / 4.398 = ?

Answer 4

0.81

Answer 5

good

so now we have

r^2 = 0.81855

so you need to know this rule

\(\sqrt{x^2}\) = x

so if we take the square root of r^2, we would get 'r'
and to keep it balanced, we have to do it on both sides

so what is the square root of 0.81855

that's going to be the value of 'r'

Answer 6

so about 1

Answer 7

well yes but we want a more exact answer for you to submit

https://www.google.com/search?q=sqrt%280.81855

Answer 8

ok

Answer 9

thanks

Answer 10

no problem!