<u>Given</u>:
Given that the radius of the hemisphere is 9.8 inches.
We need to determine the volume of the hemisphere.
<u>Volume of the hemisphere:</u>
The volume of the hemisphere can be determined using the formula,

where r is the radius of the hemisphere.
Substituting r = 9.8 in the above formula, we get;

Simplifying, we get;



Rounding off to the nearest tenth, we get;

Thus, the volume of the hemisphere is 1970.2 cubic inches.
Answer:
1. 
2. 
3. 
Step-by-step explanation:

Your answer is c. i know this because this was the exact same question i did yesterday and i got 100%
B because you multiply every number by 4.
Ex. 30 x 4 = 120
120 x 4 = 480
480 x 4 = 1,920
1,920 x 4 = 7,680
Hopefully that helps you :)