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Q: Is 12 a irrational number

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The square root of 12 is an irrational number

The square root of 12 is an irrational number

It is not an irrational number but is each of the others.

The square root of 12.1 is an irrational number

It is a rational number. An irrational number is a decimal that is infinite and has no repition or pattern.

rational

It is a rational number

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

It is irrational.

12 is the ratio of 12 and 1 ... nice and rational.

-12 is rational. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.

If the square root of a natural number is not an integer, then it is irrational. Another way to look at it: if a natural number N falls between two perfect squares, then the square root of N is irrational.So in this case, 12 is between 9 (3 squared) and 16 (4 squared). So the square root of 12 is between 3 and 4, and also the square root of 12 is irrational.

Yes.

the number between 11 and 12 is obvious. it is 11 and a half

No because 84/12 = 7

It is a rational number.

Any irrational number added to 0.5 will produce an irrational number.

the square root of 12

No because 12 is a rational number that can be expressed as an improper fraction in the form of 12/1

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

3/12 = 1/4 = 0.25, which terminates, so it is a rational number.

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

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

Next to any rational number is an irrational number, but next to an irrational number can be either a rational number or an irrational number, but it is infinitely more likely to be an irrational number (as between any two rational numbers are an infinity of irrational numbers).