Select the angle that correctly completes the law of cosines for this triangle. 52 + 132 – 2(5)(13)cos _ = 122
67°
13
5
23°
90°
12
A. 180°
B. 23°
C. 90°
D. 67°

M< 5 = 80 , < 2 = 80, < 6= 100, < 3= 100, < 7= 80, < 4= 80, < 8= 100

The great thing about this problem is they give you everything you need to solve it easily. so the expression is: 12h+30w12h+30wand so everywhere you have an “h” you place 66. and everywhere you have a “w” you place 33. then the expression will look like this: 12(66)+30(33)12(66)+30(33)from here you multiply and then add. getting the following of: $785,862hope this