Find the exact value. If any are not defined, write undefined.tan(-180°)
A. 0
B. 1
C. Undefined
D. -1
Answer: A
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Find the perimeter of the figure named and shown. Express the perimeter in the same unit of measure that appears on the given side or sides.
A. 17 mi B. 32 mi C. 34 mi D. 2 mi
Solve the inequality, and graph the solution set.
? 0
A. 
? [2, ?)
B. 
C. 
D. 
? (2, ?)
Solve the problem.A merchant has coffee worth $60 a pound that she wishes to mix with 50 pounds of coffee worth $90 a pound to get a mixture that can be sold for $70 a pound. How many pounds of the $60 coffee should be used?
A. 100 lb B. 150 lb C. 50 lb D. 75 lb
Solve the problem.In a survey about the number of siblings of college students, the following probability table was constructed: 
What is the probability that a student has 1, 2, or 3 siblings?
A. 0.64 B. 0.32 C. 0.9 D. 0.5