The expenditures (in billions of dollars) for different types of recreation in the United States from 2005

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The expenditures (in billions of dollars) for different types of recreation in the United States from 2005 through 2010 are shown in the table. Expenditures on amusement parks and campgrounds, live entertainment (excluding sports), and spectator sports are represented by the variables x, y, and z.

A model for the data is given by

(a) Find

(b) Interpret the partial derivatives in the context of the problem.

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Calculus

ISBN: 9781285057095

10th Edition

Authors: Ron Larson, Bruce H. Edwards

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