Solve the triangles with the given information. (#1-5). (10 points each)
1. A = 42˚, b = 110, c = 150

2. B=124 (degrees), C=31 (degrees), c=3.5

3. a = 16, b = 19, c = 18

4. A = 25˚, a = 4.0, b = 5.0

5. A = 121˚, a = 7.5, b = 11.8

Acollege is planning to construct a rectangular parking lot on land bordered on one side by a highway. the plan is to use 680 feet of fencing to fence off the other three sides. what dimensions should the lot have if the enclosed area is to be a maximum?

In δabc, m∠acb = 90°, cd ⊥ ab and m∠acd = 45°. find: a find cd, if bc = 3 in

Find the root(s) of f (x) = (x- 6)2(x + 2)2.