## Introductory Algebra for College Students (7th Edition)

Published by Pearson

# Chapter 2 - Section 2.4 - Formulas and Percents - Exercise Set - Page 152: 5

#### Answer

r=$\frac{C}{2\pi}$ Circumference formula

#### Work Step by Step

C=2$\pi$r 2$\pi$r=C $\frac{2\pi r}{2\pi}$=$\frac{C}{2\pi}$ r=$\frac{C}{2\pi}$ The given is the circumference formula which means that circumference is equal to the product of 2, pi, and the radius.

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