Determine the amplitude or period as requested.Amplitude of y = 
cos 2x
A. 
B. 6?
C. 
D. 2
Answer: C
Mathematics
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Find the volume.A cone with height 3 in. and radius 5 in.
A. 80 in.3 B. 30 in.3 C. 200 in.3 D. 100 in.3
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Use the table or graph to answer the question.The following chart shows an appliance store's average percent profit margin on certain items: 
What is the average profit for the store if it lists the price of a particular refrigerator at 
?
A. $112.00 B. $608.00 C. $304.00 D. $98.25
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Decide whether the pair of lines is parallel, perpendicular, or neither.3x - 4y = 6 16x + 8y = 6
A. parallel B. perpendicular C. neither
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Solve the problem.In a clinical study, 19 of the 380 subjects receiving a migraine medication developed side effects. What percentage developed side effects?
A. 15% B. 7% C. 5% D. 4%
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