Simplify the expression. Assume all variables represent positive real numbers. -  + 

A.
B. - 
C.
D.


Answer: C

Mathematics

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Solve the problem.Write an iterated triple integral in the order  for the volume of the region in the first octant enclosed by the cylinder  and the plane .

A.
B.
C.
D.

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Use the shell method to find the volume of the solid generated by revolving the shaded region about the indicated line.About the line y = 1x = 6 (solid)

A. ?
B. ?
C. ?
D. ?

Mathematics

Solve the inequality and graph the solution.25x - 40 > 5(4x - 7)

A. x ? 1  
B. x < 1  
C. x > 1  
D. x ? 1  

Mathematics

Multiply. ? 

A. -14
B. -196
C. 14
D. -7

Mathematics