Use a Venn Diagram and the given information to determine the number of elements in the indicated set.n(U) = 147, n(A) = 48, n(B) = 68, n(A ? B) = 19, n(A ? C) = 22, 
and 
Find n(C).
A. 26
B. 14
C. 30
D. 46
Answer: D
Mathematics
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Solve the problem.Write parametric equations for the tangent line to the curve of intersection of the surfaces 
and 
at the point 
A. 
B. 
C. 
D. 
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Graph the pair of parametric equations with the aid of a graphing calculator.x = 3 cos t + cos 3t, y = 3 sin t - sin 3t, 0 ? t ? 2?
A. 
B. 
C. 
D. 
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The given pattern continues. Write down the nth term of the sequence {an} suggested by the pattern.0, 2, 6, 12, 20, ...
A. an = 4n - 6 B. an = 2n-1 - 1 C. an = n2 - n D. an = 2n - 2
Mathematics
Find the area of the figure.
Mathematics