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Q: Is 144 an irrational number

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It is rational.

The square root of 144 is 12 which is a rational number

144 is rational. It is a whole number, it is an integer, etc.......

144 = 144/1 so it is rational.

Not irrational, 12 squared equals 144.

No.

12 squared is not irrational. It's 144 .

sqrt(144) = 12. 12 is the ratio of 12 to 1, so it's nice and rational.

Rational.

No. The sum of an irrational number and any other [real] number is irrational.

The sum of a rational and irrational number must be an irrational number.

rational * irrational = irrational.

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

No. this is not a irrational number

It is not an irrational number!

A negative irrational number can be thought of as an irrational number multiplied by -1, or an irrational number with a minus sign in front of it.

Any irrational number, when multiplied by 0.5 will give an irrational number.

Any irrational number, added to 0.4 will give an irrational number.

no square root of 9 is 3 which is rational -- to be more specific: an irrational number is a number that cannot be expressed as a fraction. Pi, for example, is one of these numbers. If a number is not a perfect square (4, 16, 9, 144, 225, etc.), then it's square root is likely to be an irrational number. For example, the square root of 2 (1.41421356...) is an irrational number because it cannot accurately be expressed as a fraction.

Yes, it will always be irrational.

-74 is not an irrational number. An irrational number can not be represented in the form of a faction.

Wrong. It is always an irrational number.

The sum of the three can be rational or irrational.

No, 43 is not an irrational number.

It is an irrational number.