Find the exact value of the expression.cos 20° cos 40° - sin 20° sin 40°
A. 
B. 
C. 
D. 
Answer: C
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You are told to administer 250 mg of Ceclor orally to a patient. In the drug cabinet is a 150-mL bottle of Ceclor labeled 125 mg/5 mL Suspension. How many milliliters should you give the patient?
A. 10 mL B. 15 mL C. 20 mL D. 5 mL
Find the probability.A bag contains 5 red marbles, 2 blue marbles, and 1 green marble. What is the probability of choosing a marble that is not blue?
A. 
B. 6
C. 
D. 
Use graphs to find the set.(-8, 0) ? [-2, 6]
A. [-2, 0) B. (-8, 6] C. (-8, -2] D. (0, 6]
The graph of a function f is given. Use the graph to answer the question.Find the numbers, if any, at which f has a local minimum. What are the local minima?
A. f has a local minimum at x = -?; the local minimum is -2 B. f has a local minimum at x = 0; the local minimum is -2 C. f has no local minimum D. f has a local minimum at x = -? and ?; the local minimum is 2