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Q: Is 9.0 rational or irrational

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-90 squared is rational - it is +8100. All perfect squares are not only rational but they are integers.

4.6 is rational.

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10.01 is a rational number

It is a rational number

Rational.

Rational

No

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

Rational. Rational. Rational. Rational.

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

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

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1.14 is rational.

They can be rational, irrational or complex numbers.They can be rational, irrational or complex numbers.They can be rational, irrational or complex numbers.They can be rational, irrational or complex numbers.

Can be irrational or rational.1 [rational] * sqrt(2) [irrational] = sqrt(2) [irrational]0 [rational] * sqrt(2) [irrational] = 0 [rational]

It is always irrational.

It is a rational number.

Irrational. Irrational. Irrational. Irrational.

The product of a rational and irrational number can be rational if the rational is 0. Otherwise it is always irrational.

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

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