Question

Which of the following is an irrational number? A ㅠ B 0.16 C 2.53 D -1/5 ​

Answer 1

`\pi`

Explanation:

If a number can be written as an integer/integer in a fraction form or in a decimal form as a terminating or repeating decimal, it is rational. An integer is a set up numbers that fall into this pattern:

...-3,-2,-1,0,1,2,3...

0.16 is a terminating decimal or 16/100 as a fraction.

2.53 is a terminating decimal or 253/100

-1/5 can be written as a decimal at -0.2 and it terminating.