Find the interval of convergence of the power series. (Be sure to include a check for convergence at the endpoints of the interval.)



A.
B.
C.
D.
E.


Answer: D

Mathematics

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Find the midpoint of the segment with the given endpoints.(2, -3) and (-9, 8)

A.
B.
C.
D.

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Solve by the elimination method:

5x + 5y = 30 2x + 2y = 3 A) (5, 1) B) (–10, 16) C) (0, 6) D) (–5, 11) E) No solution

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Solve the problem.The total cost to produce x units of perfume is  Find the marginal average cost function.

A. 27 -  
B. 27x + 51 +  
C. 54 - 
D. 54x + 51

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Solve.Tom indicates that he received a 4% raise that amounts to $1412. What was his former salary?

A. $38,830 B. $17,650 C. $35,300 D. $31,770

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