Solve the problem.A cylindrical water tank has height 12 m and radius 2 m (see figure). If the tank is full of water, how much work is required to pump the water to the level of the top of the tank and out of the tank? Express the answer in terms of ?. 
A. 784,000? J
B. 33,868,800? J
C. 705,600 J
D. 2,822,400? J
Answer: D
Mathematics
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Graph the parabola and its vertex, focus, and directrix.x2 = 8y
A. 
B. 
C. 
D. 
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Find the nth, or general, term.10, 100, 1000, . . .
A. 10 + 90(n - 1) B. 10n+1 - 90 C. 10n D. 10n-1 + 9
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Use Pascal's triangle to expand the binomial.(x + 2)5
A. x5 + 10x4 + 40x3 + 80x2 + 80x + 2 B. x5 + 10x4 + 40x3 + 80x2 + 80x + 32 C. x5 + 10x4 + 80x3 + 160x2 + 80x + 32 D. x5 + 10x4 + 80x3 + 160x2 + 80x + 2
Mathematics