Answered

Which is irrational?

A√\(\frac{64}{2}\)
B0.82 (there is a line over 8 and 2)
C\(\frac{2}{3}\)
D\(\frac{ \sqrt{25} }{ \sqrt{81} }\)

Verified Answer :

apologiabiology

simplify when possible
rational is also in form a/b where b is not equal zero

A. sqrt64=8, over sqrt2, sqrt2=irrational so instanly we know this is answer
b. repeting, rational
c. fraction, rational
d. sqrt25=5, sqrt81=9


answer is A

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