Answer:
I think graph represent x>2. or (2,infinity)
 
        
                    
             
        
        
        
V (cone) = (1÷3) × (r×r×h) л cm3
3 cone = 1 cylinder (if "h" and "r" is same)
There is two cone... 
1st one: (1÷3) × 3×3×5 л cm3 = 15л cm3
2nd one: (1÷3) × 3×3×8 л cm3 = 24л cm3
15 + 24 = 39л cm3
 
        
             
        
        
        
Answer:
x=1, x=-4
Two distinct real roots
Step-by-step explanation:
x² + 3x- 4 = (x - 1)(x + 4)
x=1, x=-4
Two distinct real roots
 
        
                    
             
        
        
        
Calculater I'm pretty sure