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OpenStudy (just_one_last_goodbye):
HELP PLEASE MEDAL!!!!!!
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OpenStudy (just_one_last_goodbye):
Is \[\sqrt{400}\] rational or irrational? Explain your reasoning.
OpenStudy (anonymous):
Rational
OpenStudy (anonymous):
\[\sqrt{400}=\sqrt{20^2}=20\]So this number is an rational number.
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