Answer:
Step-by-step explanation:
Using the cosine rule
Here c = u , a = 11 , b = 12 and C = 30
Taking sqrt on both sides
u = 6.0 (To nearest tenth)
17x−5 =85 3x+5 =15 8x-3= -24 here you can use this to find your awnser
Answer: 5k