Question

****URGENTEEEEEE****

calcule
$\sqrt{x \: = 11 }$

$\sqrt{x = 0.9}$
$\sqrt{x = 20}$
$\sqrt{144 = x}$

Answer 1

$\sqrt{121 = 11}$ \\ $\sqrt{0.81 = 0.9}$ \\ $\sqrt{400 = 20}$ \\ $\sqrt{144 = 12}$ \\ substitui o x pelos numeros obtidos