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Q: Is 75 rational or irrational

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It is rational.

It is a rational number because it can be expressed as a fraction in the form of 75/1

4.6 is rational.

Rational

7.5 is the ratio of 75 to 10, so it's rational.

The square root of (any number that isn't a perfect square) is irrational.

It is a rational number.

No

rational

rational

No. The square root of most numbers is irrational - only if the number of which you take the root happen to be perfect squares, do you get a rational root. In this case, to take the square root of 3/4, 3 is not a perfect square, so the root is not rational. Or you can take .75 to be 75/100; once again, 75 is not a perfect square, so the root is irrational.

No, 3.56 is not an irrational number. 3.56 is rational.

75 times 75 = 5625 which is a rational number

it is a rational number but 4.121314..... is an irrational no

1.14 is rational.

It is rational, as it is possible to express it as a fraction.

No, it is rational.

irrational

If x is rational the it is rational. If x is irrational then it is irrational.

No, because it is a rational number that can be expressed as a fraction in the form of 3/4

5.2 is rational. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.

Yes.

No. A rational plus an irrational is always an irrational.

No, they are disjoint sets: no rational is irrational and no irrational is rational.

No it is not rational