Algebra 1: Common Core (15th Edition)

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

Chapter 9 - Quadratic Functions and Equations - 9-3 Solving Quadratic Equations - Practice and Problem-Solving Exercises - Page 565: 47

Answer

There are two solutions, $ \pm 0.4$

Work Step by Step

$7y^2+0.12=1.24$ $7y^2=1.12$ $y^2=0.16$ $y=\pm \sqrt 0.16$ $y=\pm 0.4$ There are two solutions, $ \pm 0.4$
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