Your answers would be c and d because angles across from the exterior angle are equal to it
If you are talking about length of an item it can only be positive.
If you talk about time it can only be positive.
If you talk about distance traveled it can only be positive.
Things that cannot be negative in the real world, cannot be negative on the graph.
If the diameter is 1/2 mile, that is 0.5 mile, then the radius is 0.25 -half of it!
the angular speed is theta/time, which means
w=theta/time
but another formula for it is Velocity*radians
w=velocity*radians
velocity is 180 mph and radians are (revolution/2

radius), that is:
w=180*(1/2

*0.25)
and if we calculate this, we have: w=114.59, which is the correct answer!
Equation: 9+2x=5,353
-9 - 9
2x=5,344
then divide both sides by 2
x=2,672