Find the exact value in radians.cos-1 
A. 
B. - 
C. 
D. 
Answer: A
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Solve the problem.A bird flies from its nest 2 km in the direction 1° north of east, where it stops to rest on a tree. It then flies 5 km in the direction 1° south of west and lands atop a telephone pole. With an xy-coordinate system where the origin is the bird's nest, the x-axis points east, and the y-axis points north, at what point is the telephone pole located?
A. (-4.999, -0.08726) B. (2.000, 0.03490) C. (-3.000, -0.05236) D. (-1.621, -1.019)
Solve the problem.A bird flies from its nest 6 km in the direction 23° north of east, where it stops to rest on a tree. It then flies 9 km in the direction 30° south of west and lands atop a telephone pole. With an xy-coordinate system where the origin is the bird's nest, the x-axis points east, and the y-axis points north, at what point is the tree located?
A. (5.523, 2.344) B. (-3.197, -5.077) C. (2.344, 5.523) D. (0.9205, 0.3907)
Use the Venn diagram shown to list the set in roster form.
B
A. {4, 7, 11, 12, 14} B. {7, 14} C. {0, 4, 7, 11, 12, 14} D. {4, 12}
Multiply, and then simplify if possible. Assume all variables represent positive real numbers.(
- 
)2
A. 18 - 2
B. 77 - 2
C. -4 - 2
D. 18 + 2