Elementary Technical Mathematics

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

Chapter 4 - Review - Page 207: 7

Answer

4

Work Step by Step

Apply the rules on page 162 of the book to find the significant digits (the accuracy) of the measurement 20.00 m We use rule #1: all non-zero digits are significant. Thus "2" is significant. We also use rule #4: all zeros to the right of a significant digit and decimal point are significant; that is, we have here 3 zeros, which are significant. Thus, there are 4 significant digits.
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