Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 5 - Section 5.2 - More Work with Exponents and Scientific Notation - Exercise Set - Page 268: 72

Answer

$2.7\times10^{-20}$

Work Step by Step

Using laws of exponents, the given expression simplifies to \begin{align*} & (3\times10^{-7})^3 \\\\&= 3^3\times10^{3(-7)} \\\\&= 27\times10^{-21} \\\\&= 2.7\times10^{-20} .\end{align*}
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