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Is the square root of -81 rational or irrational?
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.
Which number produces an irrational number when multiplied by?
At least one of the factors has to be irrational.* An irrational number times ANY number (except zero) is irrational. * The product of two irrational numbers can be either rational or irrational.
Is 4.121314 is a rational number or irrational?
it is a rational number but 4.121314..... is an irrational no
What is an irrational number minus a rational number?
It is an irrational number.
What number do you get when you add an irrational and a rational number?
An irrational 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 the root of 81 an irrational number?
No. The square root of 81 is 9, which is a rational number.
Is the square root of 81 an irrational number?
No
Is sqrt 81 a irrational number?
No because 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…
Is the number 81 irrational?
No - because it can be represented as a ratio of integers : 81 = 81/1 Any number that can be represented as a ratio of 2 integers is classified as a rational number (other than that you can't use 0 for the denominator)
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 the square root of of 81 over negative three irrational?
No. The square root of 81/(-3) is rational. The square root of [81/(-3)] is imaginary (a kind of complex number).
Is the square root of -81 rational or irrational?
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.
Is the square root of 81 irrational?
no. it is 9
Is 39.81 with a line over 81 irrational?
No, it is rational.
What is the sum of an rational number and irrational number?
An irrational number.
