Question

What set or sets does negative squareroot of 20 belong to? is it a real number, rational, integer, whole number, irrational, or natural?​

Answer 1

Real number and Irrational number

Explanation:

Given

`-\sqrt{ 20`

Required

The set it belongs to

First, solve the expression

`-√( 20) = -4.472136`

The above number is not an integer and it is not whole or natural because it has decimal points

It is not a rational number because it cannot be expressed as a simple fraction

However, the number can be categorized as either irrational or real because of the level of the decimal point in the result