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contestada

The midpoint of the coordinates (9,11) and (7.8) is

A. (16, 19)
B. (2,3)
C. (8,11)
D. none of the above

Respuesta :

Answer: D. None of the above

midpoint formula : (x2-x1) , (y2-y1)

(8-11)/2 , (7-9)/2

-1.5 , -1