Answer:
According to me, the answer is
Step-by-step explanation:
all real numbers
 
        
             
        
        
        
Answer:
The Answer is D 
Step-by-step explanation:
 
        
                    
             
        
        
        
-6 minus parentheses -1 parentheses 
-6 - (-1)
When there are two negatives, they cancel out to create a positive.
-6 + 1
The answer is -5.
        
             
        
        
        
Answer:
51°
Step-by-step explanation:
Given 
<QPR = 39°
<PQR = 90° ( inscribed angle in semi circle) 
Now 
<QPR + <PQR + <PRQ = 180° { being sum of angles of triangle) 
39° + 90° + <PRQ = 180°
 <PRQ = 180° - 39° - 90°
 <PRQ = 51°
Hope it will help :)
 
        
             
        
        
        
Half of an hour is 30 minutes.