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Q: Is 3.56 an irrational number

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No. An irrational number cannot be expressed as the quotient of two integers. 35.6 = 356/10 and both 356 and 10 are integers. Hint: A terminating decimal is never 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.

A multiple of 356 would be a number than 356 can divide into. So there is no number between 67 and 113 that can be divided by 356. The number 89 is between is between 67 and 113 and it can be divided into 356 evenly, so it is a factor, but not a multiple. 356 is a multiple of 89.

rational * irrational = irrational.

It is not an irrational number!

No. this is not a 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, added to 0.4 will give an irrational number.

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

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.

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