12.89 can be written as 1289/100, hence its a rational number.
No, 12.89 is not an irrational number. It's a decimal number that terminates, which means it can be expressed as a ratio of two integers, therefore it's a rational number. ;
12.89 is not an irrational number; it is a rational number because it can be expressed as a fraction of two integers. Its decimal representation terminates, which is characteristic of rational numbers. Therefore, 12.89 qualifies as a rational number, not an irrational one.
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