Find all solutions to the equation in [0°, 360°). 
cot ? = 1 - 
csc ?
A. {120°}
B. {60°, 120°, 240°, 300°}
C. {240°, 300°}
D. No solution
Answer: A
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Write a system of equations for the problem, and then solve the system.Two trains start from towns 572miles apart and travel toward each other on parallel tracks. They pass each other 5.5 hours later. If one train travels 18 mph faster than the other, find the speed of each train.
A. 63 mph; 41 mph B. 61 mph; 43mph C. 51 mph; 53 mph D. 56 mph; 48 mph
Find the present value for the loan on the indicated date. Assume the value of money is 12%. Round to the nearest cent.Amount: $26,949.23Rate (ordinary): 14.9%Length of loan: 124 daysLoan made: September 20Find present value on: November 30
A. $27,720.24 B. $27,257.84 C. $27,840.48 D. $27,649.78
Solve the inequality and graph the solution set.
< 11
A. (-6, 0)
B. (-?, -6) ? (6, ?)
C. (-?, -6) ? (0, ?)
D. (-6, 6)
Find an for the given geometric sequence.2, - 
, 
, - 
, 
, . . .
A. an = 2
n - 1
B. an = 2
n
C. an = 2
n - 1
D. an = 2
n - 1