Intermediate Algebra: Connecting Concepts through Application

Published by Brooks Cole
ISBN 10: 0-53449-636-9
ISBN 13: 978-0-53449-636-4

Chapter 5 - Exponential Functions - 5.2 Solving Equations Using Exponent Rules - 5.2 Exercises: 68

Answer

$m = -2$

Work Step by Step

$-2.5m^{7} = 320$ $m^{7} = - 128$ $m = -128^{\frac{1}{7}}$ $m = -2$ Check: $ -2.5(-2)^{7}$ $= -2.5(-128)$ $= 320$
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