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 Apr 23, 2018
 #1
avatar+70 
+2

Number 54:

since the axis of symmetry is a x = -2, the equation is \(y = (x-2)^2 + b\)

to find the equation, plug in x = -2 and y = 6 to find b

 Apr 23, 2018
 #2
avatar+70 
+2

55: AED and ACB are similar

 

56:

since the triangles are similar, AB is equal to 15 becuase ED / CB = AD / AB

 Apr 23, 2018

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