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Mathematics 19 Online
OpenStudy (anonymous):

Which number is irrational? 81, 169, 156, 144

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

OpenStudy (anonymous):

alright thanks.

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