Answer:
D. The horizontal cross-sections of the prisms at the same height must have the same area.
Step-by-step explanation: I dont know what the guy above is saying but this is the right answer
 
        
             
        
        
        
Because all are a multiple of 2, you can factor out 2, 2(-x^2+x+2)=0
        
             
        
        
        
Answer:
x = 0. 
Step-by-step explanation:
4x = 3x
4x - 3x = 0
x = 0
Hope this helps! 
 
        
             
        
        
        
Answer:
0
Step-by-step explanation:
10(x-2)=-20
10x-20=-20
10x=0
x=0