Answer:
dy/dx = (cos y + y sin x) / (cos x + x sin y)
Step-by-step explanation:
y cos x = x cos y
y (-sin x) + dy/dx cos x = x (-sin y dy/dx) + cos y
-y sin x + dy/dx cos x = -x sin y dy/dx + cos y
dy/dx (cos x + x sin y) = cos y + y sin x
dy/dx = (cos y + y sin x) / (cos x + x sin y)
 
        
             
        
        
        
If it’s a negative slope A, if it’s a positive slope B
        
                    
             
        
        
        
The independent variable is the type of material the balls are made from
 
        
             
        
        
        
Answer:
a
Step-by-step explanation:
to determine cost u need to have a equation to show cost per room.and total cost of rooms