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Sagot :
3) Rational numbers are numbers that can be expressed as a ratio of two intergers. integers include positive and negative whole numbers. Looking at the given options,
For option A, square root of 121 is 11. Thus, the number can be expressed as
- 11/7
It is rational
For option B, the numerator is not an integer. Thus, the number is not rational
For option C, it is a repeating decimal. All repeating decimals are rational numbers. Thus, it is rational.
For option D, if we multiply both numbers, it would be 1/1. Thus, it is rational
Thus, the correct option B
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