EBK ALGEBRA AND TRIGONOMETRY
4th Edition
ISBN: 8220100548512
Author: Watson
Publisher: CENGAGE L
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Textbook Question
Chapter B, Problem 2E
1-10 Significant Figures Evaluate the expression. Round your final answer to the appropriate number of decimal places or significant figures.
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Students have asked these similar questions
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1 Example Use a place-value chart.
A common garden spider spins a web with its silk
that is about 0.003 millimeter thick. A commonly used
sewing thread is about 0.3 millimeter thick. How does
the thickness of the spider silk and the thread compare?
STEP 1 Write the numbers in a place-value chart.
Ones . Tenths
Hundredths
Thousandths
STEP 2
Count the number of decimal place-value positions to the
digit 3 in 0.3 and 0.003.
0.3 has
fewer decimal places than 0.003
2 fewer decimal places: 10 × 10
times as much as 0.003
0.3 is
of 0.3
0.003 is
times as thick as the garden
So, the thread is
that of the thread.
1. Find the shaded areas.
-2.39 -1.81
-0.92
2.03
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