contestada

Which is irrational?

A. √[tex] \frac{64}{2} [/tex]
B. 0.82 (there is a line over 8 and 2)
C. [tex]\frac{2}{3} [/tex]
D. [tex] \frac{ \sqrt{25} }{ \sqrt{81} } [/tex]

Respuesta :

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