Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 4 - Section 4.6 - Multiplication and Division of Measurements - Exercise - Page 188: 2


$$56\times 10^4\ mi^2.$$

Work Step by Step

We have $$(470 \ mi)(1200\ mi)=564, 000\ mi^2.$$ Now, round this product to two significant digits, which is the accuracy of both measurements. That is, $$(470 \ mi)(1200\ mi)=56\times 10^4\ mi^2.$$
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