The marginal cost function for the manufacture of portable CD players is given by 
where ?x is the number of CD players manufactured. Use a Riemann sum with n = 5 to estimate the cost of producing the first 5 CD players. Round your answer to the nearest cent.
?
A. $249.96
B. $249.95
C. $224.98
D. $249.97
E. $249.98
Answer: E
Mathematics
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