Answer:
Therefore the measure of this angle is 
Step-by-step explanation:
Given, a circle is centered at the vertex of an angle and the angle's rays subtend an arc that is 86 cm long.
0.5 cm arc make an angle
1 cm arc make an angle 
86 cm arc make an angle 

Therefore the measure of this angle is 
Answer:
3
Step-by-step explanation:
the third option
Answer:
12
Step-by-step explanation:
this is very simple. since the angles are opposite the intersection of two lines, you know they must be equal.
therefore:
97 = 8t +1
solve for t:
t = 12
So angle DBC is equal to 180° - 28° which is 152°
~~
I hope that helps you out!
Any more questions, please feel free to ask me and I will gladly help you out!!
~Zoey
Answer:
a) (-1/2,3/2)
Step-by-step explanation:
-3x = x + 2
4x + 2 = 0
4x = -2
x = -1/2
y = -3(-1/2) = 3/2