V = length×width ×height 
V = 9 × 2 × 3
V = 54 units cubed
        
             
        
        
        
Answer: 5
Step-by-step explanation:
1+1+1+1+1
 
        
                    
             
        
        
        
-15x=-4x
We know that adding zero wouldn’t change the value
-15x=-4x+0
Now we can add 4x (since that’s the opposite of the negative sign) to the other side 
-11x=0
0 divided by 11 is 0
x=0
        
             
        
        
        
Answer:
A
Step-by-step explanation:
Discriminant is given by 

If it is negative then in quadratic formula the square root part becomes negative which makes the solution complex.
so there cannot be any real solution if the Discriminant is negative or less than 0 ,
The correct option for the given question is 
A