27 Oct 2021
Problem 45c
Page 37
Section: Problems by Topic
Chapter 1: Matter, Measurement, and Problem Solving
Textbook ExpertVerified Tutor
27 Oct 2021
Given information
Given:
Step-by-step explanation
Step 1.
Conceptual plan:
Significant figures rules for the multiplication and division :
"The significant figure in the result must be equal to the significant figure of least precise measurement. "
Rounding off rules:
If the digit to be dropped is or less, then the preceding number remains unchanged.
On calculating :
has three significant figures, has three significant figures and has three significant figures.
The least significant figure that will be used for answer is three.
The last digit to be dropped is , which is less than .
Hence the number can be rounded off to three significant figures as .
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