Question

Need answers ASAP

A spherical object has a diameter of 18 cm. It has a spherical inner core with a diameter of 9 cm.
What is the volume of the outer layer?
Use 3.14 to approximate pi. Round to the nearest hundredth if necessary.
Enter your answer in the box.

cm³

Answer 1

2670.57

Explanation:

I just took the K-12 quiz and this was the answer!

Answer 2

radius = 9 and 4.5

Sphere Volume = 4/3 • π • r³

Entire Outer Volume = 4/3 • 3.14 • 9^3

Entire Outer Volume = 4/3 • 3.14 • 729

Entire Outer Volume = 3,052.08 cc

Inner Core Volume = 4/3 • 3.14 • 4.5^3

Inner Core Volume = 381.51 cc

Outer Layer Volume = ( 3,052.08 -381.51) = 2,670.57 cc