Answer:
A: 249
B: 0.553
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
1) A, B, C
2) D, E, F
3) Q 
4) R, L(but lowercase), m, S, n
 
        
             
        
        
        
Answer:
380.13
Step-by-step explanation:
hope this helps :D pls mark brainliest :D
 
        
             
        
        
        
Answer:
2y - 12x = 3
Step-by-step explanation:
gradient of line PQ= (7-8)/ 4+2
-1/6
gradient of perpendicular bisector of line PQ=
-1 ÷ -1/6
-1× -6
6
coordinates of the midpoint of line PQ
(-2+4)/2, (8+7)/2
(1, 15/2)
 the perpendicular bisector passes through the midpoint of line PQ
Equation of the perpendicular bisector
y - 15/2 = 6(x - 1)
multiply through by 2
2y - 15 = 12(x - 1)
2y - 15 = 12x - 12
2y - 12x = 3