BROS COME HELP..The radius of the Earth is approximately 3,960 miles. Find the approximate surface-area-to-volume ratio of the Earth.
A.
0.00025
B.
0.00076
C.
1,320
D.
11,880

Question

BROS COME HELP..The radius of the Earth is approximately 3,960 miles. Find the approximate surface-area-to-volume ratio of the Earth.
A.
0.00025
B.
0.00076
C.
1,320
D.
11,880

mathstudent55 · Answer

You need the formula for the surface of a sphere and the formula for the volume of a sphere.

anonymous · Answer

@mathstudent55 after i get both what do i do with them?

anonymous · Answer

attachment

anonymous · Answer

Sphere Surface Area     =     4 • π • r²     =     π • d²

anonymous · Answer

Sphere Volume   =   4/3 • π • r³     =     ( π •d³)/6

anonymous · Answer

THANKS BATMAN, YOU'RE MY BRO!

mathstudent55 · Answer

Now you need to divide the surface area by the volume to get the ratio of surface area to volume.


ratio $= \cfrac{1.97061 \times 10^8}{2.6012 \times 10^{11} }$