Question

Which one of the following is an irrational number:
A: root 4
B: 3 × root 8
C: root 100
D: - root 0.64

Answer 1

Answer:

B) 3√8

Since ,

A) √4=2

It's rational number

C) √100=10

It's rational number

D) -√0.64=-0.8

It's rational number

Therefore,

B) Is not a rational number

Answer 2

Answer:

3 root 8 is answer

I hope it will help you