Perform the indicated operation. If possible, simplify.Simplify: 
A. tan x
B. sin x
C. sec x
D. csc x
Answer: B
Mathematics
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Solve the problem.The costs of one-way flights between several U.S. cities are listed below:
Using the Nearest Neighbor algorithm, estimate the minimum cost for a trip that starts in Des Moines, travels to all the other cities once, and then returns to Des Moines.
A. $720 B. $1072 C. $761 D. $816
Mathematics
(103 ð 10-5) ÄÄÄÄÄÄÄÄÄÄÄÄ = 106
a. 108 b. 106 c. 104 d. 10-2 e. 10-8
Mathematics
Use reference angles to find the exact value of the expression. Do not use a calculator.csc 
A. - 
B. - 
C. - 
D. - 
Mathematics
Use the Pythagorean theorem to find the unknown side of the right triangle.
A. 400 B. 20 C. 200 D. 10
Mathematics