Answer:
x=-1
Step-by-step explanation:
-3x+8=11
subtract 8 from both sides
-3x=3
divide by -3 on both sides
x=-1
So sorry fir it being this late but the answer is B
Answer:
15.) BAD = 10. (Since AC is 8 and CD is 2 you'll add em together to form a right angle, and BAD is a right angle so therefore they are the same.)
16.) AB = 2. (CD is 2 so therefore AB is 2, Again same size...)
17.) BD = 8. (Same size as AC...)
4 the answer is 180 degrees as the sum of all sides of a triangle = 180degrees
