## anonymous 3 years ago Find the length of the diameter of a sphere with a volume of 143.8 miles^3.

1. anonymous

5.86 miles 3.25 miles 6.5 miles 11.72 miles

2. ajprincess

The volume of the sphere=(4/3)*pi*r^3. r-radius. d-diameter d=2r (4/3)*pi*r^3=143.8 find r from. then plug in that value of r in d=2r to find d. Does that help?

3. anonymous

ok how do I plug in for R

4. ajprincess

(4/3)*pi*r^3=143.8 from this can u find r?

5. anonymous

No need help

6. ajprincess

$\frac{ 4 }{ 3 }*\pi*r^3=143.8$ $r^3=\frac{ 143.8*3 }{ 4*\pi }$ $=?$

7. anonymous

6.5 Miles

8. anonymous

??

9. ajprincess

yup:)