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)

$\frac{1}{8}\longrightarrow\text{not irrational}$

C)

$-2.2675=\frac{-22,675}{10,000}\longrightarrow\text{not irrational}$

D)

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