Intermediate Algebra: Connecting Concepts through Application

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

Chapter 1-6 - Cumulative Review: 16

Answer

$x = 2$

Work Step by Step

$2.5x^{8} - 3000 = - 2360$ $2.5x^{8} = -2360 + 3000$ $2.5x^{8} = 640$ $x^{8} = 256$ $x^{8} = 256^{\frac{1}{8}}$ $x = 2$ Check: $2.5(2)^{8} - 3000 \overset{?}{=} - 2360$ $2.5(256) - 3000 \overset{?}{=} - 2360$ $640 - 3000 \overset{?}{=} - 2360$ $-2360 = -2360$
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