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no. it is 9

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Q: Is the square root of 81 irrational?
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Related questions

Is the square root of -81 rational or irrational?

Since it is the square root of a negative number, it is actually imaginary, neither rational nor irrational. It is equal to 9i, or 9 times whatever the square root of negative one is.square root of -81 = square root of 81 times i = 9i


Is the square root of 81 an irrational number?

No.


Is the root of 81 an irrational number?

No. The square root of 81 is 9, which is a rational number.


Is the square root of of 81 over negative three irrational?

No. The square root of 81/(-3) is rational. The square root of [81/(-3)] is imaginary (a kind of complex number).


Is sqrt 81 a irrational number?

No because the square root of 81 is 9 which is a rational number


Is 81 a irrational number?

No. 81 is a rational number. An irrational number is a number with an endless amount of digits like pi or the square root of 2.


Is they sqare root of 94 irrational or irrational?

The square root of 94 is an irrational number


Is the square root of 200 rational or irrational?

The square root of 200 is irrational.


Is the square root of 28 irrational or rational?

irrational


Is the square root of -255 rational or irrational?

Irrational (and a multiple of i), as the square root of 255 is irrational.


Is the square root of 11 rational or irrational?

The square root of 11 is an irrational number


Are negative square roots rational or irrational?

If the positive square root (for example, square root of 2) is irrational, then the corresponding negative square root (for example, minus square root of 2) is also irrational.