Question

Which one of the following an irrational no is a.root4 b. 3root18 c.root100 d. -root 0.64

Answer 1

Answer:

the correct option is b.

Step-by-step explanation:

1) √4= 2 is a rational number

2) 3√18= 3×√9×2= 3×3√2= 9√2 is an irrational number.

3) √100= 10 is a rational number

4) √0.64=0.8 is a rational number

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