Use the partial sum formula to find the partial sum of the given arithmetic sequence.Find the sum of the first 33 terms of the arithmetic sequence {-4n - 4}.
A. -2128.5
B. -2310
C. -2244
D. -2376
Answer: D
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Determine whether the set is well defined or not well defined. The set of rivers that flow south to north
A. well defined B. not well defined
Solve the problem.A certain ball when dropped from a height rebounds 
of the original height. How high will the ball rebound after the fifth bounce if it was dropped from a height of 32 feet? Round your answer to the nearest tenth of a foot.
A. 7.7 ft B. 6.7 ft C. 3.4 ft D. 5.4 ft
Write the word statement in symbols.Five is equal to seven minus two.
A. 7 = 5 - 2 B. 5 = 7 - 2 C. 5 - 7 < 2 D. 7 < 5 + 2
Solve the problem.The area of a triangle with vertices (x1, y1), (x2, y2), and (x3, y3) is 
,where the symbol ± indicates that the appropriate sign should be chosen to yield a positive area. Use this formula to find the area of a triangle whose vertices are (2, 10), (6, -4), and (-3, -9).
A. 2 B. 73 C. 1 D. 146