Question

Suppose the revenue (in dollars) from the sale of x units of a product is given by
R(x) =
36x2 + 45x
2x + 2
.
Find the marginal revenue when 39 units are sold. (Round your answer to the nearest dollar.)
$

Interpret your result.
When 39 units are sold, the projected revenue from the sale of unit 40 would be

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Calculus

Derivative

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