is -4 a integer
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The number 46, as with any integer, is a rational number.
Yes. It's the ratio of 46 to 9, which is what "rational" means.
Yes, 5.5 repeating, also written as 5.555..., is a rational number. A rational number is any number that can be expressed as a fraction where the numerator and denominator are integers. In this case, 5.5 repeating can be written as 11/2, which is a fraction with integer numerator and denominator, making it a rational number.
A repeating decimal is rational.
It is a rational number, not an integer.