Always
A number with a finite number of decimal digits is always rational. (If the number of decimal digits is infinite, the number is rational only if there is a repeating pattern.)
Sometimes. The number '4' is real and rational. The number 'pi' is real but not rational.
All repeating decimals are rational numbers. Not all rational numbers are repeating decimals.
A repeating rational number is an irrational number. An irrational number is an number that has no definite end. 4.15 has a definite end and is therefore a rational number.
Repeating decimals are always rational.
Always
Yes.
Yes.
A rational number always repeats or terminates which can be thought of as repeating zeroes.
Actually, a repeating decimal is not necessarily an irrational number. A repeating decimal is a decimal number that has a repeating pattern of digits after the decimal point. While some repeating decimals can be irrational, such as 0.1010010001..., others can be rational, like 0.3333... which is equal to 1/3. Irrational numbers are numbers that cannot be expressed as a simple fraction, and they have non-repeating, non-terminating decimal representations.
A number with a finite number of decimal digits is always rational. (If the number of decimal digits is infinite, the number is rational only if there is a repeating pattern.)
Sometimes. The number '4' is real and rational. The number 'pi' is real but not rational.
Is 0.88 repeating a rational number
The square of a rational number can be either rational or irrational. However, the square of an irrational number is always irrational.
It is a rational number.
All repeating decimals are rational numbers. Not all rational numbers are repeating decimals.