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No. If you can write the number on paper, it's rational.

68 is the ratio of 68 to 1.

Q: Is 68 an irrational number

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No. It's the ratio of -68 to 10.

Since 68 is not a perfect square, its square root is irrational.

An irrational number.

When added to a rational number, any irrational number will produce an irrational number.also, when added to an irrational number, any rational number will produce an irrational number.

It is not an irrational number!

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No. It's the ratio of -68 to 10.

The square roots are irrational.

An irrational number.

Since 68 is not a perfect square, its square root is irrational.

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.

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

rational * irrational = irrational.

It is rational.

-Pi is irrational, because it does not terminate or repeat. Whenever you multiply an irrational number by a rational number (-1), the result is 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.

At least one of the factors has to be irrational.* An irrational number times ANY number (except zero) is irrational. * The product of two irrational numbers can be either rational or irrational.