Elementary Technical Mathematics

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

Chapter 4 - Section 4.1 - Approximate Numbers and Accuracy - Exercise - Page 163: 13

Answer

There are 3 significant digits.

Work Step by Step

To find the number of significant digits in the measurement $41,\bar{0}00 $ mi, we follow the rules on page 162 of the book. We use rule #1: all non-zero digits are significant. Thus "4, 1" are significant. We also use rule #3: the tagged zeros are significant; that is, the tagged zero here is significant. Thus, there are 3 significant digits.
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