The point P(x, y) on the unit circle that corresponds to a real number t is given. Find the values of the indicated trigonometric function at t.
?Find cos t.
A. - 
B. - 
C. 
D. - 
Answer: B
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Translate to a proportion and solve. 105 is what percent of 100?
A. 5% B. 10.5% C. 105% D. 1.05%
Solve the problem.
Southwest Dry Cleaners believes that it will need new equipment in 6 years. The equipment will cost $26,000. What lump sum should be invested today at 2% compounded semiannually, to yield $26,000?
A. $24,548.93 B. $24,487.64 C. $25,169.60 D. $23,073.70
Tell whether permutations or combinations are being described.7 digits are selected (with possible repetition) to form a code for an alarm system.
A. Permutations B. Combinations
Answer the question.The following table gives the electricity usage in kilowatt-hours (kwh) for the Peters family for the first six months of 2001.
What is the average electricity usage for the months February through May?
A. 964.665 kwh B. 961.885 kwh C. 960.857 kwh D. 963.875 kwh