No because the square root of 81 is 9 which is a rational number
no. it is 9
No
Yes. The square root of 81 is 9, which is a rational number.
81*81 is rational. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.
The square root of -81 is an imaginary number, specifically 9i, where i represents the imaginary unit equal to the square root of -1. Since the square root of -81 does not result in a real number, it is considered irrational. Rational numbers are those that can be expressed as a ratio of two integers, whereas irrational numbers cannot be expressed in this form.
No. The square root of 81 is 9, which is a rational number.
No. The square root of 81/(-3) is rational. The square root of [81/(-3)] is imaginary (a kind of complex number).
No because the square root of 81 is 9 which is a rational 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.
The square root of 81 is 9 which is a rational number
no. it is 9
No
Yes. The square root of 81 is 9 - a natural number and all natural numbers are rational numbers.
Yes. The square root of 81 is 9, which is a rational number.
81*81 is rational. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.
Integer, rational, and real.