Answer
$x=-6.2\times10^{3}$
Work Step by Step
Multiply equation with $(2\times10^{8}).$
$x=(-3.1\times10^{-5})(2\times10^{8})$
$x=(-3.1\times2)\times(10^{-5}\times10^{8})$
$x=-6.2\times10^{-5+8}=-6.2\times10^{3}$
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 1 - Section 1.7 - Scientific Notation - Exercise Set - Page 89: 53
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