Classify the angle as acute, right, obtuse, or straight.
A. Acute
B. Right
C. Obtuse
D. Straight
Answer: A
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Find the vertices and foci of the ellipse.
+ 
= 1
A. Vertices: (±20, 0); Foci: ( ±12, 0) B. Vertices: (0, ±20); Foci: (0, ±16) C. Vertices: (±12, 0); Foci: ( ±16, 0) D. Vertices: (0, ±20); Foci: (0, ±12)
Factor, if possible.-72 + 17x - x2
A. -(x - 9)(x - 8) B. -(x + 9)(x + 8) C. (x - 9)(x - 8) D. -(x - 9)(x + 8)
Find the sum of the series.
A. 
B. 
C. 
D. 
Solve the problem.What monthly contribution should you make if your goal is to have $850,000 in your retirement savings account after 30 years? Assume the APR is 6.6% compounded monthly and that contributions are made at the end of each month, including the last month. Round your answer to the nearest cent.
A. $813.79 B. $753.60 C. $698.42 D. $768.41 E. $648.98