Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 9 - Quadratic Functions and Equations - 9-3 Solving Quadratic Equations - Practice and Problem-Solving Exercises: 20

Answer

$$r = 0$$

Work Step by Step

First you subtract 49 from both sides. That gives you $$r^2 = 0$$ Since the square root of 0 is 0, there is only one solution and that is 0.
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