Answer
$2.15 \times 10^{-2}=0.0215$
Work Step by Step
The exponent of 10 is negative, so to convert the given number into decimal notation, move the decimal point 2 places to the left to find:
$2.15 \times 10^{-2}=0.0215$
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: 53
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