Evaluate the definite integral.dx

A.
B.
C.
D.


Answer: C

Mathematics

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Let  denote sales when a dollars are spent on advertising. We find that s has reached its maximum value. What is the value of  ? ???

A.  is positive.
B.  is negative.
C.  is 0.
D. The value of  cannot be determined.

Mathematics

Find the requested value.If f(x) = 2x + 5 and g(x) = 5x2 - 7x + 3, find (fg)(-4).

A. -348 B. 227 C. -685 D. -333

Mathematics

Provide an appropriate response.Evaluate: 

Fill in the blank(s) with the appropriate word(s).

Mathematics

Perform the indicated operation and, if possible, simplify. + 

A.  
B.
C.  
D.  

Mathematics