Find the value of the indicated trigonometric function of the angle ? in the figure. Give an exact answer with a rational denominator.
Find cos ?.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Find the length of the curve.x = 
(y - 1) 3/2 from y = 9 to y = 16
A. 
B. 3
C. 37
D. 
E. 
Mathematics
Solve the problem.The Mathematics Department is holding an election for department chair. Each member ranks the candidates from first to third. The voter profile below shows the results of the ballots with candidates Clark (C), Jones (J), and Smith (S). 
Determine the winner using the Borda count method and state whether the winner received a majority of votes.
A. Jones; no B. Smith; no C. Smith; yes D. Jones; yes
Mathematics
Find another name for the given number, but with the denominator indicated.
= 
A. 
B. 
C. 
D. 
Mathematics
Find the indicated value.Let f(x) = 3x. f-1(81)
A. 
B. 
C. 3
D. 4
Mathematics