Solve the problem.A farmer's silo is the shape of a cylinder with a hemisphere as the roof. If the height of the silo is 111 feet and the radius of the hemisphere is r feet, express the volume of the silo as a function of r.
A. V(r) = ?(111 - r) + 
?r2
B. V(r) = 111?r2 + 
?r3
C. V(r) = ?(111 - r)r3 + 
?r2
D. V(r) = ?(111 - r)r2 + 
?r3
Answer: D
Mathematics
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A. 
B. 
C. 
- 
D. 
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