Question

Which of these numbers is irrational?

Answer 1

An irrational number is not ending and non repeating

Square root of 16=4

Square root of 100=10

Square root of 36=6

These are all rational

The square root of 15=3.872983......

The answer is square root of 15

Answer 2

Answer:

B. $\sqrt{15}$

Step-by-step explanation:

We have been given four numbers. We are asked to find the irrational number from our given number.

A. $\sqrt{16}$

$\sqrt{16}=4$

Since we can write 4 as a fraction, therefore, $\sqrt{16}$ is a rational number.

B. $\sqrt{15}$

$\sqrt{15}=3.8729833462$

Since our given number has non-terminating non repeating decimal, therefore, $\sqrt{16}$ is an irrational number.

C. $\sqrt{36}$

$\sqrt{36}=6$

Since we can write 6 as a fraction, therefore, $\sqrt{36}$ is a rational number.

D. $\sqrt{100}$

$\sqrt{100}=10$

Since we can write 10 as a fraction, therefore, $\sqrt{100}$ is a rational number.