Establish the identity.
= cos(2?)
What will be an ideal response?
= 
= cos (2?)
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Use the Consumer Price Index below to answer the question.
The table below shows the federal hourly minimum wage in various years. Complete the table by converting each minimum wage from actual dollars to 2001 dollars. In which year was the purchasing power of the minimum wage the highest? If necessary, round values to the nearest cent. 
What will be an ideal response?
Convert the following angles in radians to degrees:
a. 1.57 rad b. 3.91 rad c. 5.40 rad d. 0.41 rad
At one high school, students can run the 100-yard dash in a mean of 15.2 seconds with a standard deviation of 0.9 seconds. The times are very closely approximated by a normal curve. Rounding to the nearest tenth of a percent as necessary, find the percent of times that are:At least 14.3 seconds
A. 16% B. 50% C. 13.5% D. 84%
A large gear with 300 teeth turning at 11 rpm turns a small gear at 150 rpm. How many teeth does the small gear have?
A. 5.5 B. 36 C. 27 D. 22 E. 72