Answer:
11
Step-by-step explanation:
15-4 = x
15-4 = 11
x = 11
to isolate x, you move 4 to the other side and it becomes 15-4 = x
 
        
             
        
        
        
-6.5 which in your answer choices is a
        
             
        
        
        
How can its diagonal be perpendicular to one of its sides? Since this can be read out of your details! You know point A and C are not adjacent but C and D are. So, AC must be the diagonal which is never perp. to any of the sides (CD)
        
             
        
        
        
Shouled be 1:32 if u divide 324/(4.5)
        
             
        
        
        
<span>The value of cot is √13/6</span>