Sales of fishing boats fluctuate in cycles. The following cosine function can be used to estimate the

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Sales of fishing boats fluctuate in cycles. The following cosine function can be used to estimate the total amount of sales of fishing boats, y, in thousands of dollars, in month x, for a business: y = 15.328 cos (0.475x - 1.728) + 87.223. Approximate the total amount of sales to the nearest dollar for November and for March.

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Algebra And Trigonometry Graphs And Models

ISBN: 9780134179049

6th Edition

Authors: Marvin Bittinger, Judith Beecher, David Ellenbogen, Judith Penna

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