Answer:
7.94
Step-by-step explanation:

 
        
             
        
        
        
Answer:
f(x) = 6 when -5 < x ≤ -1
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Answer:
Set 1 Angle A is 90 
Set 1 Angle B is 45 
Set 2 Angle B is 15 
Set 2 Angle C is 90 
2) 
Set 1 Angles A and C are both 62 
Set 2 Angles B and D are both 120
Step-by-step explanation:
 
        
             
        
        
        
Answer:
1) Not a function 2) Function 3) Not a function 4) Not a function 5) Function
Step-by-step explanation: