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Earn +20 ptsQ: Is the square root of 9 irrational?
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Is the square root of 9 a rational or irrational number?
The square root of 9 is 3 which is rational.
Is the square root of 81 irrational?
no. it is 9
Is the square root 9 an irrational number?
No.
Is the square root 9 rational or irrational?
They are rational.
Why is square root of 9 a rational number and square root of 3 is an irrational number?
Because 9 is a perfect square - which means that its square root is an integer. 3 is not a perfect square.
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