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Chapter A2, Problem 5E
Interpretation Introduction

Interpretation: We have to explain which numbers are exact (and therefore have an unlimited numbers of significant)

a. π=3.14

b. 12 inches= 1 foot

c. EPA gas mileage rating of 26 miles per gallon

d. 1 gross=144 should be explained

Concept introduction:

► Exact numbers have definite values, or the values are obtained by counting of objects, whereas am measured number is obtained when a quantity is measured by a measuring device. Exact numbers have unlimited number of significant figures.

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