College Algebra (6th Edition)

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: 90



Work Step by Step

$$(1.4\times10^{15})(3\times10^{-11})$$ Regroup like terms then simplify $$=(1.4\times3)(10^{15}\times10^{-11})$$ $$=4.2\times10^{(15+(-11))}$$ $$=4.2\times10^{4}$$
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