Find the area of the portion of the surface  that lies above the triangular region with vertices , and

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?

A. 16
B. 144
C. 72
D. 648
E. 1,296

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Answer: C

Mathematics

Evaluate the expression. -3

A. - 
B.  
C. - 
D.  

Write in radical form. Assume all variables represent positive real numbers.(-6x)1/5

A.
B.
C.
D.

The graph of a function f is given. Use the graph to answer the question. Find the numbers, if any, at which f has a local minimum. What are the local maxima?

A. f has a local minimum at x = -3.3 and -2.5; the local minimum at -3.3 is -2.5; the local minimum at -2.5 is 5 B. f has a local minimum at x = -2.5 and 5; the local minimum at -2.5 is -3.3; the local minimum at 5 is -2.5 C. f has a local maximum at x = -3.3 and -2.5; the local maximum at -3.3 is -2.5; the local maximum at -2.5 is 5 D. f has a local maximum at x = -2.5 and 5; the local maximum at -2.5 is -3.3; the local maximum at 5 is -2.5

Solve the problem.A water tank can be filled in 5 minutes and emptied in 8 minutes. If the drain is accidentally left open when the tank is being filled, how long does it take to fill the tank?

A. 13 minutes
B.  minutes
C.  minutes
D. 3 minutes