Answer
.0021
Work Step by Step
Divide the corresponding parts to find:
$=(6.3 \div 3) \times (10^{-6} \div 10^{-3})
\\=2.1 \times 10^{-6-(-3)}
\\=2.1 \times 10^{-6+3}
\\=2.1 \times 10^{-3}\\=.0021$
Thinking Mathematically (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0321867327
ISBN 13:
978-0-32186-732-2
Chapter 5 - Number Theory and the Real Number System - 5.6 Exponents and Scientific Notation - Exercise Set 5.6 - Page 320: 91
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