Suppose that the total cost (in dollars) for a product is given by 
, wherexis the number of units produced. Find the marginal cost when 500 units are produced, and interpret your result.Round your answer to the nearest cent.
?
A. $0.80. It will cost approximately $0.80 to make the 501st unit.
B. $0.31. It will cost approximately $0.31 to make the 501st unit.
C. $0.40. It will cost approximately $0.40 to make the 501st unit.
D. $380.95. It will cost approximately $380.95 to make the 501st unit.
E. $1.00. It will cost approximately $1.00 to make the 501st unit.
Answer: A
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