Answer:
x = 35
Step-by-step explanation:
The segment from the vertex of the triangle is an angle bisector and divides the opposite side into 2 segments that are proportional to the other 2 sides, that is
=
( cross- multiply )
8x = 280 ( divide both sides by 8 )
x = 35
For slope-intercept form is y=mx+b
Therefore the answer should be:
y=-4x+7
Using Triangle sum theorem you add all the angles to make 180. So 47.7+51.1+<1=180
98.8+<1=180
-98.8 -98.8
<1= 81.2