idkman1 idkman1

03-01-2017
Mathematics

contestada

25 points for 13, 14 and 15! Thank you so much in advance!

25 points for 13 14 and 15 Thank you so much in advance class=

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apologiabiology apologiabiology

03-01-2017

14.
midpoint means the distance between them is the same
therfor
5x+5=7x-9
5=2x-9
14=2x
7=x
5x+5
35+5
40
AB=40 units

15.
those angles add to 180
2x+4+6x+20=180
8x+24=180
8x=156
x=19.5
2x+4
39+4
43 degrees is ABD

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