Answer
$6.3\times10^{7}$
Work Step by Step
$$(3\times10^{4})(2.1\times10^{3})$$
Regroup like terms, then simplify:
$$(3\times2.1)(10^{4}\times10^{3})$$
$$6.3\times10^{(4+3)}$$
$$6.3\times10^{7}$$
College Algebra (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-32178-228-3
ISBN 13:
978-0-32178-228-1
Chapter P - Prerequisites: Fundamental Concepts of Algebra - Exercise Set P.2 - Page 33: 87
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