Worldwide annual sales of a device in 2012–2013 were approximately  q = −6p + 3,040  million units at a selling price of $p per unit. Assume a manufacturing cost of $40 per unit. [HINT: Recall that Profit = Revenue − Cost.] Find the function P for annual profit, in millions of dollars and in terms of p only, subject to any constraints. P(p) = ____       Find  P′(p). P′(p) = ____       What selling price (in dollars) would have resulted in the largest annual profit? (Round your answer to two decimal places.) p = $____  What would have been the resulting annual profit (in millions of dollars)? (Round your answer to the nearest whole number.) $ ____ million

ENGR.ECONOMIC ANALYSIS
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ISBN:9780190931919
Author:NEWNAN
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Chapter1: Making Economics Decisions
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Worldwide annual sales of a device in 2012–2013 were approximately 
q = −6p + 3,040
 million units at a selling price of $p per unit. Assume a manufacturing cost of $40 per unit. [HINT: Recall that Profit = Revenue − Cost.]
Find the function P for annual profit, in millions of dollars and in terms of p only, subject to any constraints.
P(p) = ____
 
 
 
Find 
P′(p).
P′(p) = ____
 
 
 
What selling price (in dollars) would have resulted in the largest annual profit? (Round your answer to two decimal places.)
p = $____ 
What would have been the resulting annual profit (in millions of dollars)? (Round your answer to the nearest whole number.)
$ ____ million
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