Question

Which of the following numbers are irrational?

negative two and 3456 ten thousandths, one fourth pi, the cube root of nine, and two plus the square root of sixteen

−2.3456 and two plus the square root of sixteen
−2.3456 and one fourth pi
the cube root of nine and two plus the square root of sixteen
one fourth pi and the cube root of nine

Answer 1

one fourth pi and the cube root of nine

Explanation:

`\pi` is irrational, and multiplying by 1/4 still keeps it irrational.

The cube root of nine doesn't result in a whole number, so it is also irrational.