Answer:
Step-by-step explanation:
postulate : ASA
 Congruent statement : LON  = MNO
 
        
                    
             
        
        
        
So to solve problems like these you can work out each equation by substituting the x and y with the coords from the vertex (2,-4) and which ever one is true is the corresponding equation.
Lets try the first one 
A) y = 2( x-2)^2-4    this would become
   -4 = 2(2-2)^2-4    we solve this and get
    -4 = 2(0)-4
    -4 = -4  
so it seems like A is the correct answer, of course we'd wanna check out the other answers just to be sure.
Lets try one and do C
C)  -2 = 2(-4-2)^2+2   
     -2 = 2(-8)^2+2
     -2 = 130
These aren't equal so this can't be our equation
So you can also do one more just to be super sure you have the right answer but I think A is the correct one :)
 
        
             
        
        
        
Answer:
4.9 hours = 4 hours 54 minutes
Step-by-step explanation:
speed = distance/time
time * speed = distance
time = distance/speed
time = (284 miles)/(58 mph) = 4.9 hours
4.9 hours - 4 hours = 0.9 hours
0.9 hours * (60 minutes)/(1 hour) = 54 minutes
4.9 hours = 4 hours 54 minutes
 
        
             
        
        
        
Step-by-step explanation:
This isn't. a true identity.

 
        
             
        
        
        
The percent would be 29%. You need to move the decimal to the right twice.