Use the figure to find the exact value of the trigonometric function.Find cos 2?.
A. - 
B. 
C. - 
D. 
Answer: C
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Solve the problem.Suppose you invest $P on a CD paying 4.15% interest compounded continuously for a term of 250 days. At the end of the term you get $8230.66 from the bank. Find the value of the original principal P. Round your answer to the nearest dollar.
A. $7995 B. $8000 C. $8065 D. $8025 E. $7975
Subtract.
A. 6864 B. 6884 C. 8886 D. 6886
Find the distance between the pair of points. Give an exact answer, and where appropriate, an approximation to three decimal places.(-2.3, 1.0) and (-4.5, 2.8)
A. 10.288 B. 7.790 C. 8.127 D. 2.843
Provide an appropriate response.Identify which of the following properties apply to the graph of 
I. The domain is all real numbers except integer multiples of ?. II. The principal cycle of the graph occurs on the interval (0, ?). III. The equations of the vertical asymptotes are 
, where n is an odd integer. IV. The x-intercepts are of the form n? where n is an integer.
A. III and IV B. I and III C. II and III D. II and IV