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Earn +20 ptsQ: Is the number 81 irrational
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Is the root of 81 an irrational number?
No. The square root of 81 is 9, which is a rational number.
Is 81 a rational or irrational number?
81 as well as all whole numbers are rational numbers. Any number that can be written as a fraction is a rational number. An irrational number can be written as a decimal, but not as a fraction. An irrational number has endless non-repeating digits to the right of the decimal point. An example of an irrational number would be pi: π = 3.141592…
The sum of a rational number and an irrational number is?
The sum of a rational and irrational number must be an irrational number.
Whether a rational number multiplied by an irrational number gives an irrational number?
rational * irrational = irrational.
Is 3.56 an irrational number?
No, 3.56 is not an irrational number. 3.56 is rational.
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