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No.

An irrational number is any number that is not a rational number;

A rational number is any number that can be expressed as one integer over another integer.

negative 3 over 4 is one integer (negative 3) over another integer (4), and so is a rational number.

Q: Is negative 3 over 4 an irrational number?

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100/3 is a rational number

an irrarional number is a number that can't be written as a fraction or whole number. -sqrt(9)=-3 This is a whole number so it isn't irrational, just rational

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

no, the square root of any number (like 2) which does not have an exact value in fraction form is an irrational number. 3/4 is a rational number. Any number with integers in both the numerator and denominator (except 0) is a rational number.

1) Adding an irrational number and a rational number will always give you an irrational number. 2) Multiplying an irrational number by a non-zero rational number will always give you an irrational number.

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No. It is -3 and can be written as a fraction, so it is rational.

Negative three is a rational number.

-3 is a rational number

3/8 is rational, it can't be irrational.

No, an irrational number by definition is a number that cannot be written as a fraction

yes* * * * *No it is not.

Neither. All irrational numbers are real numbers.Using the real number system you can't take the square root of a negative number, but if you're dealing with imaginary numbers then the square root of negative 3 is the square root of 3i

No. The square root of 81/(-3) is rational. The square root of [81/(-3)] is imaginary (a kind of complex number).

Rational -1.(3 repeating) Any repeating decimals are rational. However, a number such as pi (3.141592654...) does not repeat or end.

It is a real rational negative integer number whose value is -3

No. By definition, 3/8 is rational.

100/3 is a rational number