The volume of a small rubber ball is 20 cubic inches. If
the radius of the ball were doubled, what would be the
volume of the new, larger ball?

Volume: 160 cubic inches

Step-by-step explanation:

The formula of a sphere is V = where r is the radius and V is volume

You can insert 20 as the volume and use it as a way to view the changes:

20 =

15 =

=

now if the radius were doubled...

? =

? = 8

=

Then if you were to compare it to the original volume, you should see that when substituted, it appears as:

? =

20 * 8 =

Therefore, the volume of the new, larger ball is 160 cubic inches

Hope that helps : )

not sure but it may be b, as i said i'm not sure.

b. 18

step-by-step explanation:

so the equation for this is:

ab^2=ac⋅ad

ab being the top length of 6 and ac being the length of 2 and ad being the length of x. let's plug into the equation:

6^2 = 2x

now lets just solve for x:

36 = 2x

18 = x

i hope that !