rational
No, it is rational.
The square root of 121 is 11 which is a rational number and it is also a prime number
15.125 is a rational number because it can be expressed as a simple fraction, 121/8
no, because the root of a number that isn't a perfect square is irrational
It is rational number because 2.20% is the same as 0.022 which as a fraction in its lowest terms is 11/500 and only rational numbers can be expressed as fractions.
Rational
No, they are rational.
No, it is rational.
Integers are rational numbers.
If the value applied in the radical is not a perfect square, it is irrational. 25; 400; and 625 are perfect squares and are rational when applied in a radical.
The square root of 121 is 11 which is a rational number and it is also a prime number
No. Radical(9) is +3 or -3, both of which are rational.
No. Radical(1.21) = 1.1, for example, is rational.
No it is not. It is not irrational either but is an "imaginary" number.
No, because 11 squared is 121 which is a rational number
15.125 is a rational number because it can be expressed as a simple fraction, 121/8
Sqrt(4) is +/- 2 so it is rational, not irrational. The question, therefore, makes no sense.