Answer:
BR is about 7.3084 cm
Step-by-step explanation:
the sum of the exterior angles of any polygon is 360. The measure ox x would be 360/15= 24
since I want BR, I will use cos (adj/hyp)
cos24=s/8
.9135=s/8
7.3084=s
 
        
             
        
        
        
Answer:
<h3>
          A = 0.5(2x+6)(6x+13) = 6x² + 49x + 78</h3>
Step-by-step explanation:
H = 2x+6          - the hight
3H = 3(2x+6)      - triple the hight
3H-5 = 3(2x+6) - 5    -  five less than triple the height
Area of triangle:  A = 0.5BH
B = 3(2x+6)-5 = 6x + 18 - 5 = 6x + 13
H = 2x+6
So:
     A = 0.5(2x+6)(6x+13) = (x+6)(6x+13) = 6x² + 13x + 36x + 78
     A = 6x² + 49x + 78 
 
        
             
        
        
        
Answer:
its A. 
Step-by-step explanation:
nun of the lines touch.
 
        
             
        
        
        
Answer:
-8
Step-by-step explanation:
5(-4)-(4)+8
-20+4+8
-20+12
-8