Answer:
it is irrational because rational number can be written as a fraction but this can. not be written because it is smaller than.001
9/31 squared is rational
sqrt (9/31) is irrational
Explanation:
A rational number can be written as a fractions
9/31 is written as a fractions
9^2 / 31^2 can be written as a fraction so it is rational
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