Find an explicit formula for an.0, 0, 2, 2, 0, 0, 2, 2, . . .
A. an = 1 + (-1)n(n-1)
B. an = 1 + (-1)n(n+1)
C. an = 1 + (-1)(n(n+1))/2
D. an = 1 - (-1)n(n-1)
Answer: C
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A. 
B. 
C. 
D. 
The following question refers to a country with five states. There are 250 seats in the legislature, and the populations of the states are given in the table below.
Using a divisor of D = 39,500, the modified quotas (to 3 decimal places) are
A. State A: 6.250; State B: 21.875; State C: 117.500; State D: 95.625; State E: 8.750. B. State A: 6.242; State B: 21.848; State C: 117.353; State D: 95.506; State E: 8.739. C. State A: 6.329; State B: 22.152; State C: 118.987; State D: 96.835; State E: 8.861. D. State A: 6.173; State B: 21.605; State C: 116.049; State D: 94.444; State E: 8.642. E. none of these
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Fill in the blank(s) with the appropriate word(s).
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Fill in the blank(s) with the appropriate word(s).