Q: Is 9 an irrational number

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Yes 9 times pi is an irrational number because it can't be expressed as a fraction

-9 is a rational number

No. 9/46 is an irrational number as it has no definite end.

The square root of 9 is rational.

0.4444

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Yes 9 times pi is an irrational number because it can't be expressed as a fraction

9 is a rational number

What is 'pie' ; the meat pie that you eat??? I think you mean 'pi' , the mathematical symbol. Please spell it correctly.!!!!! pi = 3.141592654.... is an irrational number. Casually, an IRRATIONAL number is one which the decimals go to infinity and the decimal digits are not in any regular order. Any number rattional or irrational multiplied to aN IRRATIONAL number produces an irrational result. Hen ce -9 is rational -9(3.141592654...) = -28.27433388... is irrational.

-9 is a rational number

No, it is rational.

2.25

No.

The number has a decimal representation that terminates (after 9 digits). If it terminates, the number is rational.

It is rational.The square root of 9 is 3 and it is a rational number

No. 9/46 is an irrational number as it has no definite end.

97 is a rational number.

It is a whole number so it is rational.