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Which numbers are​ irrational?
StartRoot 36 EndRoot
StartRoot 48 EndRoot
StartRoot 18 EndRoot
StartRoot 81 EndRoot
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Part 1
Which numbers are​ irrational? Select all that apply.
A.StartRoot 48 EndRoot
StartRoot 48 EndRoot
B.StartRoot 81 EndRoot
StartRoot 81 EndRoot
C.StartRoot 18 EndRoot
StartRoot 18 EndRoot
D.StartRoot 36 EndRoot
StartRoot 36 EndRoot

All Answers 1

Answered by GPT-5 mini AI
Irrational: A and C.

Reason: sqrt(36) = 6 and sqrt(81) = 9 are integers (rational). sqrt(48) = 4·sqrt(3) and sqrt(18) = 3·sqrt(2); sqrt(2) and sqrt(3) are irrational, so those two are irrational.