Answer:
6m^2-17m+12
Step-by-step explanation:
Answer:
ABC = 55°
Step-by-step explanation:
Angle A plus Angle C equals Angles B.
Add them together then subtract from 180°.
Answer:
420sqrt(69)
Step-by-step explanation:
Y = 12
First, I remembered that complementary angles are angles that add together to get 90 and supplementary angles are angles that add together to get 180. Next I subtracted 102 from 180 and got 78, which means that x = 78. Then I subtracted 78 (x) from 90 and got 12 (y).