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Q: Is the number 43 an irrational number?

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You wont be able to add a rational number and an irrational number and get a number not in a fraction ( 3 + 22/7) (21/7 + 22/7 = 43/7) So, yes as you see in the example above it made another irrational number.

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.

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.

Since you are using a computer you have access to a calculator: click [START] - click [RUN] - type "calc" - hit [ENTER] Answer: √43 = 6.5574The square root of 43 is an irrational number

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.

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