Elementary Technical Mathematics

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

Chapter 1 - Review - Page 102: 66



Work Step by Step

$\sqrt {19200}=138.564$ Count three digits from the left to find the 3rd significant digit. Since the number to the right is 5 or greater, round up. $13\underset\uparrow8.564\approx139$
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