30 is what percent of 300?
A. 2%
B. 1%
C. 20%
D. 100%
E. 10%
Answer: E
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Graph the pair of parametric equations with the aid of a graphing calculator.x = 4(t - sin t), y= 4(1 - cos t), 0 ? t ? 4? 
A. 
B. 
C. 
D. 
Find the mean.76, 151, 299, 96
A. 207.3 B. 155.5 C. 156.0 D. 155.0
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
Solve the problem.A weight attached to a spring is pulled down 9 inches below the equilibrium position. Assuming that the frequency of the system is 
cycles per second, determine a trigonometric model that gives the position of the weight at time t second.
A. y = -9cos 5t B. y = -9cos 10t C. y = 9cos 5t D. y = 9cos 10t