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: 10



Work Step by Step

We are given $0.0040 g$. To find the number of significant digits, we follow the rules on page 162 of the book. We use rule #1: all non-zero digits are significant. Thus "4" is significant. We also use rule #4: all zeros to the right of a significant digit and decimal point are significant. Thus the "0" after the "4" is significant. Finally, rule #6 tells us that the zeros to the left of the "4" are not significant. Thus, there are 2 significant digits.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.