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OpenStudy (devonhoward15):
Which counterexample disproves the conjecture? If a perfect square is even, then its square root is composite. 4 9 36 64
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OpenStudy (chrishogan):
A. 4
OpenStudy (devonhoward15):
Howd you get it?
OpenStudy (chrishogan):
Well for first 9 is odd so that's out. C and D's square roots (6 and 8) are composite, so that cuts them out aswell.
OpenStudy (chrishogan):
And 4's square root is NOT composite so A would be your answer.
OpenStudy (devonhoward15):
wanna help me with more? ill put them in a different question
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OpenStudy (chrishogan):
Sure thing, I'll see what I can do.
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