For what values of x is f(x) = square root of x-4 equal to 4?

x = 20

Step-by-step explanation:

given f(x) = , we have to solve

= 4

Square both sides

()² = 4²

x - 4 = 16 ( add 4 to both sides )

x = 20

As a check

= = 4 ← correct

it would to have a graph or something ! but i had this question so its false

step-by-step explanation:

area = length x width

length = 2 x width

32 = 2 x width x width

32 = 2 x width^2

36 = width ^2  

width = 6

length = 12

area is 32

perimeter = 2 x 12 + 2 x 6 = 24 + 12 = 36

step-by-step explanation: