Answer:
D
Step-by-step explanation:
Angles outside a circle are half the difference of the measures of the intercepted arcs.
78 - 12 = 66
66/2 = 33
The angle is 33 degrees
Answer:1
Step-by-step explanation:
Answer:
b
Step-by-step explanation:
Answer:
-4a²+4a³
Step-by-step explanation: