Question

Which number is a irrational number?

a. 15
b. 1.15
c. 25
d. 1.25 as a repeated decimal

Answer 1

Square root of 15

Explanation:

Answer 2

none.

Explanation:

An Irrational Number is a real number that cannot be written as a simple fraction.

So, checking one by one

a and c) 15 can 25 are not an irrational number because they are an integer and all integers are rational numbers. and can be written as 15/1 or 25/1

b )1.15 is not an irrational number its fraction form is 23/20

d) Repeating decimals are considered rational numbers because they can be represented as a ratio of two integers. If a number is terminating or repeating, it must be rational.