Angle sum theorem - what does y equal? will give brainliest!

The sum of the 3 inside angles of a triangle need to equal 180.

Y = 180 - 90 - 48 = 42 degrees.

See attached picture:

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square

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,