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Is a square root a rational number?
A square root is considered a rational number if the number inside the square root sign is a perfect square. In other words, if the square root of a number results in a whole number, then it is a rational number. For example, the square root of 9 is 3, which is a whole number, making it a rational number. However, if the square root results in a non-terminating, non-repeating decimal, then it is considered an irrational number.
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?
A square root is considered a rational number if the number inside the square root sign is a perfect square. In other words, if the square root of a number results in a whole number, then it is a rational number. For example, the square root of 9 is 3, which is a whole number, making it a rational number. However, if the square root results in a non-terminating, non-repeating decimal, then it is considered an irrational number.
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
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
What is an Adams number?
If the reverse square root of the reverse of square of a number is the number itself then it is Adam Number. For ex., 12 and 21 Take 12 square of 12 = 144 reverse of square of 12 = 441 square root of the reverse of square of 12 = 21 The reverse square root of the reverse of square of 12 = 12, then number itself. Such number is called Adam Number. cool....................
