
Advanced Engineering Mathematics
10th Edition
ISBN: 9780470458365
Author: Erwin Kreyszig
Publisher: Wiley, John & Sons, Incorporated
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Transcribed Image Text:Jesaki Inc estimates that it will sell N(x) units of product after spending $x thousand on
advertising, as given by
N(x) = 0.49 x 4 + 46 x³- 1,055 x² + 159,587.
What is the point of diminishing returns? Round to the nearest dollar.
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