Answer:
41
Step-by-step explanation:
BDA = DBC+CBA
84=5x+3 + 6x-7
Combine like terms
84 = 11x-4
Add 4 to each side
84+4= 11x -4+4
88 =11x
Divide each side by 11
88/11 = 11x/11
8 = x
We want angle  ABC
ABC = 6x-7
        =6*8 -7
       =48-7
      =41
 
        
                    
             
        
        
        
Im thinking both shorter sides are 5cm, and the 2 longer sides are 8cm each... add them all together and you get 26cm
        
                    
             
        
        
        
R+5=3r+7
  -5      -5
    r=3r+2
 -3r -3r
   -2r=2 
 ÷-2 ÷-2
r=-1
        
             
        
        
        
Answer:
3630
Step-by-step explanation:
726*5 
= (700+20+6) * 5
= (700*5) + (20*5) + (6*5)
= 3500 + 100 + 30
= 3600 + 30
= 3630
 
        
             
        
        
        
The answer is 7.5for the question