Find the trigonometric form of - 21 - 21i.
?
A. 
B. ?
C. ?
D. ?
E. ?
Answer: D
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Solve the problem.Find the inflection points (if any) on the graph of the function and the coordinates of the points on the graph where the function has a local maximum or local minimum value. Then graph the function in a region large enough to show all these points simultaneously. Add to your picture the graphs of the function's first and second derivatives.y = x5 - 4x4 - 200 
What will be an ideal response?
Answer the question or give an explanation.Describe the effect on merchants and customers if credit card usage suddenly stopped.
What will be an ideal response?
Graph the function by starting with the graph of the basic function and then using the techniques of shifting, compressing, stretching, and/or reflecting.f(x) = 
|x|
A. 
B. 
C. 
D. 
Solve the problem.Ted pays an annual premium of $682 for his life insurance policy. His brother Ned pays 18% more for the same policy because he is a little older. What is Ned's annual premium? Round your answer to the nearest dollar.
A. $375 B. $697 C. $790 D. $805