Answer:
C
Step-by-step explanation:
The large triangle is an isosceles since both angles at the base each equal 42°.
In an isosceles triangle the altitude z is at the same time median , then it bisects the opposite side in the middle . So w = 120/2 = 60
Now let's calculate z:
tan 42° = (opposite side) / (adjacent side) = z/60
tan 42° = 0.9,
0.9 = z/60 and z = 54
The answer is 7x+7/x^2+3x-10
Answer:
C.) i belive this is the correct one
Step-by-step explanation:
