Solve the problem.A water tank is formed by revolving the curve y = 5x4 about the y-axis. Find the volume of water in the tank as a function of the water depth, y.
A. V(y) = 
y9
B. V(y) = 
y3/2
C. V(y) = 
y1/2
D. V(y) = 
y3/2
Answer: D
Mathematics
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; Find r.
A. 2
B. 
C. 
D. - 
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Simplify the algebraic expression.-10.8b2 + 28.3b2
A. 17.5b2 B. 17.5b4 C. -17.5b2 D. -39.1b2
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Solve the equation.x + 
= -2
A. -2, 1 B. -1, -1 C. 1, 1 D. 1
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Solve the equation on the interval [0, 2?).cos x - 2 cos x sin x = 0
A. 0, 
, 
, 
B. 
, 
, 
, 
C. 
, 
, 2?
D. 
, 
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