Evaluate the integral.
A. 9?
B. 16?
C. 17?
D. 8?
Answer: B
Mathematics
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Solve the problem.If the curve z = x2 in the xz-plane is revolved about the z-axis, the resulting surface has equation z = x2 + y2, obtained as a result of replacing x by 
. If y = 6x2 in the xy-plane is revolved about the y-axis, what is the equation of the resulting surface?
A. y = 6x2 - 6z2 B. y = 6x2 + 6y2 C. y = 6x2 + 6z2 D. y = x2 + z2
Mathematics
Graph the piecewise-defined function.g(x) = 
A. 
B. 
C. 
D. 
Mathematics
Solve.The weight that a horizontal beam can support varies inversely as the length of the beam. Suppose that a 5-m beam can support 180 kg. How many kilograms can a 5-m beam support?
A. 0.1389 kg B. 7.2 kg C. 0.0056 kg D. 180 kg
Mathematics
Use the product rule to simplify the radical.-5
A. 35
B. 2
C. -35
D. -2
Mathematics