Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 1 - Section 1.7 - Scientific Notation - Exercise Set - Page 91: 92


The heart beats $2.94336 \times 10^{9}$ times over a lifetime of $80$ years.

Work Step by Step

$$\frac{70 times}{minute} \times \frac{60minute}{1hour} \times \frac{24hours}{1day} \times \frac{365days}{1year} \times 80years$$ $$= 2,943,360,000 times$$ Expressed in scientific notation as $2.94336 \times 10^{9}$ times.
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