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Elanso [62]
3 years ago
15

How to know if the number is a perfect square​

Mathematics
1 answer:
emmasim [6.3K]3 years ago
3 0

Answer:

Step-by-step explanation:

Prime factorize the given number. All factors should have pair. If all factors have pair, then it is a perfect square

EG: 36 : Factors of  36 are 2,3,2,3. Here there are two 2's and two 3's. so 36 is a perfect square.

EG: 24: Factors of 12 are 2,2,3. Here 3 is without pair. so it is not a perfect square.

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117.369 is 24 3/10% of what number?
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select the irrational number? A)√9 B)√12 C)√16 D)√20 E)√25 (there should be more than one answer)
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__________________________
    [B]:  "√12 " ;   AND:
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    [D]:  "<span>√20" .
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Note:  "Irrational numbers" have decimals that are:  1) non-terminating;  AND:  2) non-repeating.
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Consider the answer choices given; and consider the given information that there "should be no more than one answer.
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Consider the following answer choices:
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Choice A)  "</span><span>√9"  =  3 .  Rule out this choice.
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Choice C)  "</span><span>√16" = 4 .  Rule out this choice.
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Choice E)  "</span><span>√25" = 5.   Rule out this choice.
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We are left with 2 (two) remaining answer choices:
    [B]:  "</span>√12"  ;  and:  [D]:  "<span>√20" .
_________________________________
If there are more than one answer, then these two choices should be the correct answer.   However, let us explore these two choices, using a calculator.
____________________________
    [B]:  </span>"√12"  =  3.4641016151377546

    [D]:  "√20"  =  4.4721359549995794
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Step-by-step explanation:

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