Answer:
B. 0.69
Step-by-step explanation:
Law of Cosines: cos A = (b² + c² - a²) / 2bc
cosθ = (7² + 11² - 8²) / 2*7*11 = 106/154 = 0.688 ≈ 0.69
It is 0.0623 hope it helps
Answer: 0.31 is the decimal form of 31%
Step-by-step explanation:
Answer:
B. 33.5
Step-by-step explanation:
V=πr2h
3=π·2^2·8/3≈33.51032
7x+(x+20)=180
Just simplify. Hope this helped:)
