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4 years ago

14

Which two consecutive whole numbers is the value of √21 between?

2 answers:

aniked [119]4 years ago

6 0

The answer is: [A]: " 4 and 5 " .
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Explanation:
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Looking at the answers:
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we know that 4² = 16 ; and 5² = 25 ;

So: √16 = 4 ; and √25 = 5.

So: √21 must be between √16 and √25 ;

That is: √21 must be between 4 and 5 ; which is answer choice: [A] .
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madreJ [45]4 years ago

4 0

The perfect squares on either side of 21 are 16 and 25 of which the roots are:

4 and 5

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