Find the solution to the system
of equations.

please help

 (-4,0)

Step-by-step explanation:

y = 1/2x +2  

x = -4

y = 1/2(-4) + 2    [To find the solution, we use x=-4 to solve for y, so plug in -4 for x]

y = -2 + 2

y = 0

And we use y = 0, to find the x.

0 = 1/2x + 2

-2 = 1/2x            [Subtract 2 from both side]

1/2x = -2             [Rewrite it]

    x =  -2 / (1/2)

    x = -4

So we find the solution (-4,0)

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,