Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 4 - Polynomials - 4.2 Negative Exponents and Scientific Notations - 4.2 Exercise Set: 106

Answer

$6.51\times10^{3}$

Work Step by Step

Using the laws of exponents and the concepts of scientific notation, the given expression, $ (3.1\times10^7)(2.1\times10^{-4}) $, simplifies to \begin{array}{l} (3.1)(2.1)\times10^{7+(-4)} \\\\= 6.51\times10^{3} .\end{array}
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