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81*81 is rational. Rational numbers are numbers that can be written as a fraction. Irrational Numbers cannot be expressed as a fraction.
Wiki User
∙ 11y ago
Wiki User
∙ 12y agoRational.
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Is -81 an irrational number?
No, -81 is not an irrational number because it can be represented in the form x/y = -81
Is sqrt 81 a irrational number?
No because the square root of 81 is 9 which is a rational number
Is a rational plus an irrational equals a rational?
No. A rational plus an irrational is always an irrational.
Is -131 rational or irrational?
rational
Is the sum of a rational and irrational number rational or irrational?
It is always irrational.
Is 9 squared rational or irrational?
81 is rational. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.
Is 39.81 with a line over 81 irrational?
No, it is rational.
Is the root of 81 an irrational number?
No. The square root of 81 is 9, which is a rational number.
Is -81 an irrational number?
No, -81 is not an irrational number because it can be represented in the form x/y = -81
Is sqrt 81 a irrational number?
No because the square root of 81 is 9 which is a rational number
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 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 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…
Is 4.6 irrational or rational?
4.6 is rational.
Is 10.01 a rational or irrational number?
10.01 is a rational number
Is 37.5 a rational or irrational number?
Rational
Is 34.5 rational or irrational?
is 34.54 and irrational or rational. number
