Answer:
C. 19
B. 47
C. 12
C. 10
C. -8
Step-by-step explanation:
for each equation you take the number given, input it as the value of the variable, and evaluate the equation
hopefully this helps :)
 
        
             
        
        
        
Answer:
Use the "find vertically opposite angle" method. 
a = 80°
To find the other angles:
Since the angles equal up to 360 which makes a full circle shape... 
360 - 80 - 80 = 200 (B and C) 
200 ÷ 2 = 100 (Angle for B and C since they are vertically opposite, hence having the same angle)
b = 100°
c = 100°
 
 
        
             
        
        
        
Answer:
   see below
Step-by-step explanation:
The angle where chords cross is the average of the intercepted arcs. Here, that is ...
   (37° +46°)/2 = (83°)/2 = 41.5°
Angle SUT is 41.5°.
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<em>Comment on the error</em>
The measure of an arc cannot be arbitrarily said to be the same as the angle where the chords cross. It will be the same if (a) the chords cross at the circle center, or (b) the opposite intercepted arc has the same measure. Neither of these conditions hold here.
 
        
                    
             
        
        
        
Adjacent Angles<span> are </span>two angles<span> that share a common vertex, a common side, and no common interior points. (They share a vertex and side, but </span>do<span> not overlap.) A </span>Linear Pair<span> is </span>two<span> adjacent</span>angles<span> whose non-common sides </span>form<span> opposite rays. ... ∠1 and ∠3 are not </span>vertical angles<span> (they are a </span>linear pair<span>).</span>
        
             
        
        
        
Answer:
Well, I don't have further explanation to this question but I know the answer which is: The x-axis is the only line of symmetry