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Mathematics 16 Online
OpenStudy (anonymous):

is √81 rational or irrational?

OpenStudy (anonymous):

81 is a perfect square of 9. Because 9 is a whole number, and not a repeating decimal, it is rational. Repeating decimals are also rational.

OpenStudy (anonymous):

ok thx

OpenStudy (anonymous):

sorry unrepeating decimal are rational

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