kmedina0043 kmedina0043

05-09-2019
Mathematics

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The number √21 is a number because

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salatulmaghrib salatulmaghrib

05-09-2019

It is a real number because it exists.

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shelbyorozco shelbyorozco

05-09-2019

Answer: Because it's not a perfect square

Step-by-step explanation: The square root of 21 is not a perfect square. If it was it would be either 7 or 3 because 7 x 3 = 21 and 3 x 7 = 21, 21 / 7 = 3 and 21 / 3 = 7. But it is not a perfect square.

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