The polar equation represents a conic with a focus at the pole. Identify the conic.r = 
A. not a conic
B. parabola
C. hyperbola
D. ellipse
Answer: D
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Solve.The population growth of an animal species is described by 
where t is the number of months since the species was introduced. Find the population of this species in an area 6 months after the species is introduced.
A. 704 B. 74 C. 240 D. 470
Use the preference table to answer the question.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 A drops out of the new table, but the winner is still chosen by the plurality method. Is the independence-of-irrelevant-alternatives criterion satisfied?
A. C; A; yes B. A; C; yes C. C; C; yes D. A; A; yes
Write the equation as f(x) = a(x - h)2 + k. Identify the vertex.f(x) = 3x2 - 4x
A. f(x) = 3
2 - 
; 
B. f(x) = 3
2 - 
; 
C. f(x) = 3
2 - 
; 
D. f(x) = 3
2 - 
; 
Find the area of the figure using determinants.
A. 11.0 B. 11.5 C. 12.0 D. 12.5