Answer:
<u>C) −12/5⋅(7/12⋅1/9)⋅8/5=(−12/5⋅7/12)⋅(1/9⋅8/5)</u>
 
        
             
        
        
        
Answer:
\pi 
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
No solution
Step-by-step explanation:
Using substitution, we get to the answer 12=0, which is untrue meaning no solution.
Hope this helps! Please give Brainliest!!
 
        
                    
             
        
        
        
Answer:
∠D B C = 41°
Step-by-step explanation:
<u><em>Step(i)</em></u>:-
Given ∠ABC = 90°
  In diagram ∠D B C + ∠A B D = 90°
                        6 x+5 + 8 x +1 = 90
                        14 x + 6 = 90
                       14 x = 90 -6
                       14 x = 84
                     <em>     x = 6</em>
<u><em>Step(ii):-</em></u>
 ∠D B C = 6 x + 5 = 6 (6) +5 = 36 +5 = 41
 <em>∠D B C = 41°</em>
<em>  ∠A B D = 8(6) +1  = 49°</em>
<em>∠D B C + ∠A B D =  41° + 49° = 90°</em>