Question

calculate |4 + 7|. the absolute value of 4 + 7 is equal to the square root of

Explanation:

Step1: Calculate the sum inside the absolute - value

$4 + 7=11$

Step2: Recall the property of absolute value

For a non - negative number $a$, $|a| = a$. Since $11$ is non - negative, $|11| = 11$. And we know that if $|4 + 7|=\sqrt{x}$, then $x = 11^{2}$.
$11^{2}=121$

Answer:

$121$