Classify the angle as acute, obtuse, straight, or right.
A. Obtuse
B. Acute
C. Right
D. Straight
Answer: C
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The graph of a function f is given. Use the graph to answer the question.How often does the line y = 5 intersect the graph?
A. once B. twice C. three times D. does not intersect
Solve the problem.A weight attached to a spring is pulled down 9 inches below the equilibrium position. Assuming that the period of the system is 
second, determine a trigonometric model that gives the position of the weight at time t seconds.
A. y = 9cos 
t
B. y = 9cos 10?t
C. y = -9cos 10?t
D. y = -9cos 5?t
The marginal cost function for the manufacture of portable CD players is given by 
where ?x is the number of CD players manufactured. Use a Riemann sum with n = 5 to estimate the cost of producing the first 5 CD players. Round your answer to the nearest cent.
?
A. $249.96 B. $249.95 C. $224.98 D. $249.97 E. $249.98
Solve the problem.How many ways can a president, vice-president, secretary, and treasurer be chosen from a club with 9 members? Assume that no member can hold more than one office.
A. 3024 B. 36 C. 24 D. 126