Which Number Is Rational?
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Answer:
A. 0.333...
Step-by-step explanation:
Any repeating decimal can be written as a ratio of two integers, hence is rational. 0.333... = 1/3
The last offering appears to be a non-repeating infinite-length decimal, hence is irrational.
Of course π is irrational, as is the square root of any integer that is not the square of an integer.