Answer:
The values of x are

Step-by-step explanation:
we have

Solve for x
Adds 42 both sides


Divide by 6 both sides

simplify

square root both sides

therefore
The values of x are

Here's the equation for direct variation. k=y/x [ f(x)=y]
Find k
k= 48/8=6
6=y/2
y=12
Hope this helps.
Answer:
7
Step-by-step explanation:
x +4+2x+1+3x-2 = perimeter of triangle.
(6x +3)ft = perimeter
given perimeter = 45feet
hence,
6x + 3 = 45
6x = 42
x = 7
Hope it helped!! plz mark brainliest!! have a good day !! :)