Solve the problem.A child's playground swing (in side view) sweeps out a sector of a circle as it moves. Write an equation for the circle if the swing has a chain length of R and the rest position of the swing's seat is the origin.
A. x2 + y2 - 2Ry = 0
B. x2 + y2 - 2Ry - 2R2 = 0
C. x2 - 2Rx + y2 = 0
D. x2 + y2 + 2Ry = 0
Answer: A
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Find the average of the list of numbers.-17, 2, -9, 3, 12, -5, 7
A. -3 B. 1 C. -1 D. -2
Solve the problem.Identify the incorrect statements about limits.I. The number L is the limit of f(x) as x approaches x0 if f(x) gets closer to L as x approaches x0.II. The number L is the limit of f(x) as x approaches x0 if, for any ? > 0, there corresponds a ? > 0 such that 
< ? whenever 0 < 
< ?.III. The number L is the limit of f(x) as x approaches x0 if, given any ? > 0, there exists a value of x for which 
< ?.
A. I and III B. II and III C. I and II D. I, II, and III
Write as a percent. 0.34
A. 3.4% B. 34% C. 0.034% D. 340%
Use the change of base formula and your calculator to approximate the logarithm.log7 
A. 0.8824 B. 0.5667 C. 0.2833 D. 1.7647