Solve the problem.A water tank is formed by revolving the curve y = 3x4 about the y-axis. Find the volume of water in the tank as a function of the water depth, y.

A. V(y) = y1/2
B. V(y) = y3/2
C. V(y) = y3/2
D. V(y) = y9

Answer: B

Mathematics

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Find an equation for the sphere with the given center and radius.Center (-9, 6, 0), radius = 8

A. x2 + y2 + z2 + 18x + 12y = -53 B. x2 + y2 + z2 - 18x + 12y = -53 C. x2 + y2 + z2 - 18x - 12y = -53 D. x2 + y2 + z2 + 18x - 12y = -53

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Mathematics

Solve the problem.Sheryl's mean score on eight exams is 93.625. Find the sum of her scores.

A. 849 B. 772 C. 765 D. 749

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Mathematics

Solve.Linda walked   mi to the park and then another   mi to the cafe. How far did she walk in total?

A.  mi
B.  mi
C.  mi
D.  mi

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Mathematics

Factor completely. If the polynomial is prime, then state this as your answer.1 - 625y4

A. (1 + 5y)2(1 - 5y)2 B. (1 + 25y2)(1 - 25y2) C. (1 + 25y2)(1 + 5y)(1 - 5y) D. prime

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Mathematics