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OpenStudy (anonymous):
Which number is irrational? 81, 169, 156, 144
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OpenStudy (anonymous):
156
OpenStudy (anonymous):
are u sure?
OpenStudy (anonymous):
can u explain why its irrational please
OpenStudy (anonymous):
It is irrational because it cannot be expressed as an integer or as a fraction with integral terms
OpenStudy (anonymous):
also 156 because the others are 9, 13 and 12 and they are rational
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OpenStudy (anonymous):
alright thanks.
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