Question

Select the correct answer.Which number is an irrational number?A. √100B. 1/8C. -2.2675D. ^3√16

Answer 1

We have to find which of this numbers is irrational.

The definition of an irrational number is a real number that can not be expressed as a fraction or a quotient of two integers. For example, pi or the square root of 2.

We will test each option to see if they are irrational or not.

A)

`\sqrt[]{100}=10\longrightarrow\text{not irrational}`

B)

`(1)/(8)\longrightarrow\text{not irrational}`

C)

`-2.2675=(-22,675)/(10,000)\longrightarrow\text{not irrational}`

D)