Divide.(2r3 - 3r2 - 2r - 21) ÷ (r - 3)
A. 2r2 - 3r - 7
B. 2r2 + 3r + 
C. r2 + 7r + 3
D. 2r2 + 3r + 7
Answer: D
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Answer the question.The central angle of a regular polygon is an angle with vertex at the center of the polygon.Number of sides:4568Central angle:90°72°60°45°What is the measure of the central angle of a regular polygon with 9 sides?
A. 40° B. 38° C. 48° D. 42°
Factor the expression completely, if possible.x4 - 27x
A. x(x + 3)(x2 - 3x + 9) B. (x2 - 3)(x2 + 9) C. x(x - 3)(x2 + 3x + 9) D. Does not factor
Find the sum of the geometric series.
Express the answer as a fraction.
A. - 821
B. - 823
C. - 820
D. - 
Find the equation of the hyperbola with the given characteristics.center is not at the origin, vertices are (-2, 6) and (-2, 0), one asymptote is 
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1