A rational number is one such that it is "capable of being expressed as an integer or a quotient of integers, excluding zero as a denominator."
So you must ask yourself: can 2.25 be expressed as a quotient of integers? In other words, can you divide one integer by another and get 2.25? The answer is yes, because 9 divided by 4 is 2.25. Therefore, 2.25 is a rational number.
225 is an integer and not a fraction. However, it can be expressed in rational form as 225/1. You can then calculate equivalent rational fractions if you multiply both, its numerator and denominator, by any non-zero integer.
yes
Yes.
It must be a generalised rational number. Otherwise, if you select a rational number to multiply, then you will only prove it for that number.
yes
Yes, 225 squared is a rational number.
The square root of 225 is 15, which is a rational number.
It is 15 which is a rational number
Yes, 225 squared is a rational number.
yes it is
It is 15.
225 is a rational number because it can be expressed as the fraction 225/1, where both the numerator and denominator are integers. Additionally, since it is a perfect square (15 x 15), it has a finite decimal representation (225.0). Thus, it meets the criteria for being classified as a rational number.
Neither, it is an imaginary number and imaginary numbers are neither rational nor irrational.
No because 225 is an integer and all whole numbers are rational
-225 is rational. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.
Because some of them are squares of rational numbers. So their square roots are the rational numbers.Thus if x is rational, then the square roots of x2, which are -x and +x are both rational.
If you mean the square root of 196/225 then it is 14/15 which is a rational number because it can be expressed as a fraction.