Question

Please need help!!!!!!!!!!! Answer 8, 9, and 10 please!!!!!!!!!!!! 50 points!!!!!!!!!!!!!!!

Answer 1

8) AD = 23

9) m<B = 63

10) G(1,-5)

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8)

AD = BC

Thus, x + 21 = 12x - 1

11x = 22

x = 2

So, AD = 23

9)

consecutive angles are supplementary, sum to 180

y/2 + y - 9 = 180

3/2 y = 189

y = 126

so, m<B = 63

10)

Diagonals bisect each other. The midpoint of DF = (-1.5, 0.5)

-1.5 = 2+x/2

x = 1

0.5 = 6+y/2
y = -5

G(1,-5)