Question

3 fill in the blank 0.5 points simplify, if necessary round to the hundredth √400 type your answer..

Explanation:

Step1: Recall square root definition

The square root of a number \( x \), denoted \( \sqrt{x} \), is a value \( y \) such that \( y^2 = x \). We need to find \( y \) where \( y^2 = 400 \).

Step2: Identify the square root

We know that \( 20 \times 20 = 20^2 = 400 \), so \( \sqrt{400} = 20 \).

Answer:

20