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Mathematics 8 Online
OpenStudy (anonymous):

are the answers correct? http://prntscr.com/28rvy6

OpenStudy (xishem):

Hint: Square roots of primes are always irrational. Also, what's the squareroot of 64?

OpenStudy (anonymous):

8

OpenStudy (xishem):

Then is this irrational? \[-\sqrt{64}\]

OpenStudy (anonymous):

no ?

OpenStudy (anonymous):

?

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