Question

Which of the following numbers will produce a irrational number when multiplied by 0.4

1. 2/7
2. 3 pi
3. 0.4444.....
4. 13




I need more than one answer please help

Answer 1

3 pi is irrational so multiplying it by 0.4 will produce another irrational number.

All the others are rational will give a rational result.

So its choice 2.

Answer 2

its this-

Explanation:

square of 13

and 3pi