Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 6 Rational Exponents and Radical Functions - 6.6 Solve Radical Equations - 6.6 Exercises - Problem Solving - Page 458: 61b


$\approx80.39$ mph

Work Step by Step

Plugging in $B=12$ into the formula we get: $12=1.69\sqrt{s+4.25}-3.55\\15.55=1.69\sqrt{s+4.25}\\9.2\approx \sqrt{s+4.25}\\84.64\approx s+4.25\\s\approx80.39$
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