Solve the problem.A farmer's silo is the shape of a cylinder with a hemisphere as the roof. If the radius of the hemisphere is 10 feet and the height of the silo is h feet, express the volume of the silo as a function of h.
A. V(h) = 100 ?(h2 - 10) + 
?
B. V(h) = 4100 ?(h - 10) + 
?
C. V(h) = 100 ?(h - 10) + 
?
D. V(h) = 100 ?h + 
?h2
Answer: C
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Solve the system of equations by Gaussian elimination. If there is an unlimited number of solutions, find two of them.x - y + 3z = -2 -x + y - 3z = 4
A. x = 3, y = 2, z = 0 B. x = 0, y = 2, z = 0 C. Inconsistent D. x = 0, y = 0, z = 2
Provide an appropriate response.Which of the following is another name for 
?
A. 
B. AD
C. 
D. 
Solve the rational inequality.
< 3
A. (-?, -8) ? (8, ?)
B. (-?, -8) ? (- 
, ?)
C. (-?, - 
) ? (8, ?)
D. (-8, - 
)
Given two concentric circles (circles with the same center) with central angle ? = 45°,r1 = 4.5 m, and r2 = 9 m, find the shaded area in the illustration below. Round your answer to three significant digits.
A. 29.106 m 2 B. 47.713 m 2 C. 25.856 m 2 D. 7.594 m 2 E. 23.856 m 2