Among the options provided, the one that is irrational is:
3√4
This is because the cube root of 4 (√4) is not a perfect cube and does not result in a rational number.
The other numbers are either repeating decimals (which are rational), a decimal representation of a rational number, or an integer, which is also rational.
Thus, the correct identification of irrational numbers would confirm that 3√4 is indeed the only irrational number listed.