Graph the ellipse.4x2 + 5y2 - 40x + 30y + 125 = 0
A. 
B. 
C. 
D. 
Answer: A
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Solve the problem.The preference table shows the results of an election among three candidates, A, B, and C. 
(a) Using the plurality method, who is the winner?(b) The voters in the two columns on the right move their last-place candidates from last place to first place. Construct a new preference table for the election. Using the table and the plurality method, who is the winner?(c) Suppose that candidate C drops out of the new table, but the winner is still chosen by the plurality method. Is the irrelevant alternatives criterion satisfied?
A. A; A; yes B. C; A; yes C. B; B; yes D. C; C; yes
Find the exact value under the given conditions.sin ? = 
, 0 < ? < 
; cos ? = 
, 0 < ? < 
Find cos (? + ?).
A. 
B. 
C. 
D. 
Find the sum of the sequence.
A. 176 B. 56 C. 120 D. 88
Find the union of the two sets.{2, 5, 9, 10} ? {2, 5, 13}
A. {2, 5, 9, 10, 13} B. ? C. {9, 10, 13} D. {2, 5}