Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 3 - 3.5 - Mathematical Modeling and Variation - 3.5 Exercises - Page 296: 60



Work Step by Step

$z=k\frac{x^2}{y}$ $z=6$ when $x=6$ and $y=4$: $6=k\frac{6^2}{4}=k\frac{36}{4}=9k$ $k=\frac{6}{9}=\frac{2}{3}$ Then: $z=\frac{2}{3}\frac{x^2}{y}=\frac{2x^2}{3y}$
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