Question

The ratio between the radii of two spheres is 9:2 What is the ratio of their volumes?

Answer 1

cube the ratios

Answer 2

is it 729:8 ?

Answer 3

r:R is ratio between radii then r^3:R^3 is ratio between volume

Answer 4

so am i correct then?

Answer 5

\[V1/V2 = (4*\pi*r1^3)/(4*\pi*r2^3)\]

Answer 6

Volume is proportional to the cube of the radius

Answer 7

im confused am i wrong then?

Answer 8

@ineedhelponmyhw Your answer 729/8 is correct.

Answer 9

ok thank you!

Answer 10

Answer is correct.....i was just giving u the concept @ineedhelponmyhw

Answer 11

You're welcome :)