College Algebra 7th Edition

Published by Brooks Cole
ISBN 10: 1305115546
ISBN 13: 978-1-30511-554-5

Chapter 1, Equations and Graphs - Section 1.10 - Modeling Variation - 1.10 Exercises - Page 164: 16



Work Step by Step

Since $S$ is directly proportional (jointly) to the square of $r$ and the square of $\theta$, we have:: $S=kr^{2}\theta^{2}$ (and $k$ is a constant.)
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