Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 11 - Rational Expressions and Functions - 11-1 Simplifying Rational Expressions - Practice and Problem-Solving Exercises - Page 668: 46


$4$ $to$ $1$

Work Step by Step

Area of a circle = $\pi r^{2}$ $A_{1}=\pi r_{1}^{2}=\pi (6x)^{2}=\pi * 36x^{2}$ $A_{2}=\pi r_{2}^{2}=\pi (3x)^{2}=\pi * 9x^{2}$ Ratio : $\frac{A_{1}}{A_{2}}= \frac{36x^{2}}{9x^{2}}=\frac{4}{1}$
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