Question

what whole number is equivalent to \\(\sqrt{81}\\)? enter the answer in the box.

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 \( y^2 = 81 \).

Step2: Identify the square number

We know that \( 9 \times 9 = 81 \), so \( 9^2 = 81 \). By the definition of square root, \( \sqrt{81} = 9 \).

Answer:

9