Find an equation for the graph.
A. y = 
cos 
B. y = cos (4x)
C. y = 
cos (4x)
D. y = 
cos 
Answer: C
Mathematics
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If 
, make a graph of 
versus f. Use a horizontal span of 0 to 5.
What will be an ideal response?
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Solve the problem.The fence was 2.8 ft. high. Find the equivalent height in centimeters.
A. 110.2 cm B. 71.1 cm C. 7.1 cm D. 84 cm
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Solve.ABC phone company charges $25 per month plus 
per minute for phone calls. XYZ phone company charges $15 per month plus 6¢ per minute for phone calls. How many minutes of phone calls should be made each month to make XYZ phone company a better deal?
A. Less than 50 minutes B. More than 500 minutes C. Less than 500 minutes D. More than 50 minutes
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Solve the problem.Add (3a5 - 9a2) and (2a5 + 2a2).
A. -2a7 B. -2a14 C. 5a10 - 7a4 D. 5a5 - 7a2
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