Answer:
b= -60 or (0,-60)
Step-by-step explanation:
remember it is negative and it is on the y line!!
 
        
                    
             
        
        
        
The coefficient of b is h/2. Multiply the equation by the reciprocal of that.
(2/h)A = (2/h)·(h/2)·b
b = 2A/h . . . . . simplify
 
        
             
        
        
        
28)  
330.0076
29)  
V = l X w X h
V = 12 X 20 X 14
12 X 7 = 84
84 X 2 = 168
168 X 20 = 3360
The volume of the cooler is 3,360 in³