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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…
What else can I help you with?
Is the root of 81 an irrational number?
No. The square root of 81 is 9, which is a rational number.
Is 37.5 a rational or irrational number?
Rational
Is the product of a rational number and an irrational number rational or irrational?
Such a product is always irrational - unless the rational number happens to be zero.
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 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 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 sqrt 81 a irrational number?
No because the square root of 81 is 9 which is a rational number
Is -81 is rational or irrational?
81*81 is rational. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.
Is 37.5 a rational or irrational number?
Rational
Is 0.05 a rational or irrational number?
It is a rational number.
Is 34.5 rational or irrational?
34.5 is RATIONAL. Irrational numbers are those were the decimals go to infinity AND there is no regular order in the decimal numbers. Definitively an Irrational Number CAnnot BE CONVERTED TO A quotient/ratio/frACTION pi = 3.141592.... is the most well known irrational number. So 34.5 is rational 34.55555..... is rational (gOES TO INFINITY ; numbers in regukar order). 34.565656.... is Rational (Goes to infinity ; numbers in regulkar order). et seq., The dots after the number mean it continues to infinity . However, 34.25865414..... is Irrational . Because there is no regular order in the decimal digits.
Is the square root 81 rational or irrational?
The square root of 81 is 9, which is a whole number. Since all whole numbers are considered rational numbers (as they can be expressed as a fraction with a denominator of 1), the square root of 81 is rational.
Is 4.121314 is a rational number or irrational?
it is a rational number but 4.121314..... is an irrational no
When an irrational number is divided by a rational number is the quotient rational or irrational?
Irrational.
Is the product of a rational number and an irrational number rational or irrational?
Such a product is always irrational - unless the rational number happens to be zero.
