Answer
$$1.22 \times 10^{-11}$$
Work Step by Step
\begin{align}
(6.1 \times 10^{-8})(2 \times 10^{-4}) & = (6.1 \times 2)(10^{-8} \times 10^{-4})\\ &= 12.2 \times 10^{-8-4} \\ &=12.2 \times 10^{-12} \\ &= 1.22 \times 10^{-11}
\end{align}
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter P - Section P.2 - Exponents and Scientific Notation - Exercise Set - Page 30: 91
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