Answer:
x = 138
Step-by-step explanation:
The 2 arcs above the diameter form a semicircle = 180°
x + 42 = 180 ( subtract 42 from both sides )
your answer is c :)
Opps i am really sorry i donot know it
8.66
2
(f+g)(x)
f(x)= x-3, g(x)= 2x+8