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Is a square root a rational number?
Some are and some are not. For example, the square roots of 2.25, 3.61, 4, 4.84, 5.29, 6.76, 7.29, 8.41, 9, 10.89, 11.56, 12.25, 13.69, 14.44, 15.21, 16, 17.64, 18.49, 19.36, 20.25, 21.16, 22.09, 23.04, 24.5025, and 25 are all rational numbers. But the square roots of 2, 3, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 17, 18, 19, 20, 21, 22, 23, and 24 are irrational numbers. We believe, but can't prove easily, that there are more irrational square roots than rational ones.
Is 8 over 21 a rational or irrational number?
Any number that is presented as an integer "over" (aka divided by) an integer is automatically a rational number - that's what the definition of a rational number is.
What number can square to give an answerbigger than 400 but smaller than 500?
To find a number that, when squared, gives a result between 400 and 500, we can look for the square roots of these boundary numbers. The square root of 400 is 20, and the square root of 500 is approximately 22.36. Therefore, any number between 20 and about 22.36 will satisfy the condition, such as 21 or 21.5.
Is 0.36 rational or irrational?
Rational.
Is 10.5 a rational number?
Yes because it can be expressed as a fraction in the form of 21/2
Is the square root of 84 a rational number?
No because it is 2 times the square root of 21 which is an irrational numberThe square root of 84 is not a rational number
Is the square root of 441 a rational number?
Yes because 21 is a rational number
Is the square root of 21 an irrational or a rational number?
irrational
Is the square root of 21 rational?
No, they are not.
Is 21 over the square root of 4 a rational or irrational?
It is equal to 21/2 which is a rational number
The square root of 21 is it rational or irrational?
irrational, it has a never ending decimal
Is a square root a rational number?
Some are and some are not. For example, the square roots of 2.25, 3.61, 4, 4.84, 5.29, 6.76, 7.29, 8.41, 9, 10.89, 11.56, 12.25, 13.69, 14.44, 15.21, 16, 17.64, 18.49, 19.36, 20.25, 21.16, 22.09, 23.04, 24.5025, and 25 are all rational numbers. But the square roots of 2, 3, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 17, 18, 19, 20, 21, 22, 23, and 24 are irrational numbers. We believe, but can't prove easily, that there are more irrational square roots than rational ones.
What is the simplest radical from of the square root of 84?
First note that 84=4x21 and 4 is a perfect square. So square root of (84)=square root (4x21)=Square root (4) Square root (21)= 2 multiplied by the square root of 21. You can also write this using rational exponents, but this is not in radical form. It is an equivalent expression, however. 2 x (21)1/2
Is the square root of 21 a natural number?
No, the square root of 21 is not a natural number. Natural numbers are positive integers (1, 2, 3, ...), and the square root of 21 is approximately 4.58, which is not an integer. Therefore, it does not qualify as a natural number.
What is the square root of 21?
The square root of 21 is 4.58257569495584.
What are the square root of 21?
The square roots of 21 are 4.5826 (rounded) and the negative of the same number.
What is the square root of 84 simplify?
It is: 2 times the square root of 21 and it's an irrational number
