Answer:
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Step-by-stedcvp explanation: welcome to family fued
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Answer:
   x = 4
Step-by-step explanation:
The vertex is on the line of symmetry. The zeros are located equidistant from the line of symmetry, which is ...
   x = (2 + 6)/2 = 4
The x-coordinate of the vertex is x=4.
 
        
             
        
        
        
Answer:
Using the percentage difference formula you can find the percentage decrease. 
SO its 
100(new-old/new)
So we solve 
10-6=4 
4/10= 2/5 
2/5*100=200/5
40 
40 percent decrease 
 
        
             
        
        
        
Answer:
A. 400*45.2=400*45+400*0.2=18000+80=18080
B. 14.9*100=15*100-0.1*100=1500-1=1490
C. 76.2*200=76*200+0.2*200=15200+4=15204
Step-by-step explanation: