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Advanced Engineering Mathematics
10th Edition
ISBN: 9780470458365
Author: Erwin Kreyszig
Publisher: Wiley, John & Sons, Incorporated
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
Transcribed Image Text:The total annual cost C ($) of an operating pump in a natural gas power plant is a function of the power of
the pump x (horsepower):
C = $500+ $0.9x+
$4500
X
a) Find the optimum x that minimizes the total annual cost.
b) Prove that this is the minimum point by taking the second derivative.
c) Find the minimum C.
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