Question

which of the following is an irrational number 120, 100, 49, 9​

Answer 1

Step-by-step explanation:

The decimal expansion of a rational number is either terminating or non-terminating repeating.

(A) 0.14 is terminating, so it is a rational number

(B) 0.14

16

ˉ

=0.141616....

is also rational ( non-terminating repeating ), where digits 16 are repeating.

(C) 0.1416 is terminating, so it is a rational number

(D) 0.4014001400014.....

is an irrational number because it is neither terminating nor repeating.

Answer 2

Answer:

irrational numbers can not written in the form of p/q

so we can say that -

120 = 240/2

100 = 200/2

9 = 27/3

but we cannot write 49 in p/q so ,, obously right answer is 49

hope it's help you ❤️