81*81 is rational. Rational numbers are numbers that can be written as a fraction. Irrational Numbers cannot be expressed as a fraction.
No, -81 is not an irrational number because it can be represented in the form x/y = -81
No because the square root of 81 is 9 which is a rational number
No. A rational plus an irrational is always an irrational.
rational
It is always irrational.
No, it is rational.
81 is rational. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.
No. The square root of 81 is 9, which is a rational number.
No, -81 is not an irrational number because it can be represented in the form x/y = -81
No because the square root of 81 is 9 which is a rational number
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
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.
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…
4.6 is rational.
10.01 is a rational number
Rational
is 34.54 and irrational or rational. number