Distances from the center of dilation are multiplied by the dilation factor. The appropriate choice is ...
... A. X'P/XP = Y'P/YP = Z'P/ZP
_____
We don't know what selection B means in this context.
Selection C will only be true if the dilation is by a factor of 2.
Selection D will only be true if P is the center of the circumscribing circle for both X'Y'Z' and XYZ.
12 x 80 = 960
18 x 86 = 1548
960 + 1548 = 2508
12 + 18 = 30
2508/30 = 83.6
The class average is 83.6
Answer- 3x-56(x) =8
Explanation- Good luck
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