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the problem 39 is:A piece of wood has a labeled length value of 76.49 cm. You measure its length three times and record the following data: 76.48 cm, 76.47 cm, and 76.59 cm. How many significant figures do these measurements have?
Would you define what the question calls "significant figures"?
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Asked 10/11/2008 12:05:01 PM
Updated 64 days ago|7/31/2023 2:35:50 AM
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The number of significant figures in each measurement is determined by the number of digits that are known with certainty plus one uncertain digit. In this case:

1. 76.48 cm: 4 significant figures (all digits are known with certainty)
2. 76.47 cm: 4 significant figures (all digits are known with certainty)
3. 76.59 cm: 4 significant figures (all digits are known with certainty)

Therefore, each measurement has 4 significant figures.
Added 64 days ago|7/31/2023 2:35:50 AM
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Questions asked by the same visitor
is the number 5 x10 -4 greater than 1.0? explain your answer.
Weegy: yes it is because 46 is greater than 1 (More)
Question
Expert Answered
Updated 69 days ago|7/27/2023 12:15:21 AM
1 Answer/Comment
The number 5 x10 -4 will be less than 1.0 because the 5x10^-4 is number that can be written as 0.0005 as the power of the 10 is in negative digits which comes into the point digits after evaluating carefully.
Thus it is clear that 1.0 is bigger than 0.0005.

Added 69 days ago|7/27/2023 12:15:21 AM
This answer has been confirmed as correct and helpful.
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