## Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole

# Chapter 1 - Section 1.7 - Modeling with Equations - 1.7 Exercises - Page 75: 15

#### Answer

4w$^{2}$

#### Work Step by Step

In this case we are told that the rectangle is 4times longer than it is wide ,and we are supposed to express its area, which is: 4w$\times$w = 4w$^{2}$ where w is its width and 4w its length expressed in terms of width

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