Science, asked by gadgadeshri, 3 months ago

A mile is defined as 5280 feet. How many significant
figures does this number have? (1 marks)
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Answers

Answered by unique331312
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Answer:

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Answered by amitnrw
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Given: A mile is defined as 5280 feet.

To Find :   count of significant figures  in 5280

Solution:

All non-zero digits are significant.    

The leftmost nonzero digit is the first or most significant figure.

If there is a decimal point, the rightmost digit is the last or least significant figure

If there is no decimal point explicitly shown, the rightmost non-zero digit is the least significant figure

All digits between the most significant figure and the least significant figure are significant.

5 , 2 and  8  are  non-zero digits hence  significant.    

first or most significant figure.  = 5

There is no decimal point , ignore those :

rightmost non-zero digit is the least significant figure  = 8

All digits between the most significant figure and the least significant figure are significant.

Hence  5 , 2 and 8  are significant figures

There are 3 significant figures

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