Suppose the marginal cost is $C ^ { \prime } ( x ) = e ^ { - 0.4 x }$ ,where x is measured in units of 300 items and the cost is measured in units of $10,000.Find the cost corresponding to the production interval [300,1,500].Round to the nearest dollar.
A)$13,375
B)$5,350
C)$9,029
D)$2,140

Question

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The Answer is A

Suppose the Marginal Cost Is C′(x)=e−0.4xC ^ { \prime } ( x ) = e ^ { - 0.4 x }C′(x)=e−0.4x

Suppose the Marginal Cost Is $C ^ { \prime } ( x ) = e ^ { - 0.4 x }$