Answer:
0.84 is the answers for the question
Step-by-step explanation:
please give me brainlest
B. 0.69
Law of Cosines: cos A = (b² + c² - a²) / 2bc
cosθ = (7² + 11² - 8²) / 2*7*11 = 106/154 = 0.688 ≈ 0.69
6km = 6000m
standard form - 6 x 10^3