Answer:
angle B = 78.46°
Step-by-step explanation:
Use the cosine ratio


Hope this helps
Answer:
(-6,-1)
Step-by-step explanation:
Answer:
B:5x
Step-by-step explanation:
It would be B because if you add all the sides together you would get 5x and 5x is B
Answer:
0
Step-by-step explanation:
Subtract 3 from 3 leaving you with -2y = 0
Divide -2 on both sides to isolate y. 0/-2 is 0.