Find a general term an for the geometric sequence.a1 = 
and r = -7
A. an = 
- 
(n - 1)
B. an = 
- 
(n - 1)
C. an = 
? (-7)(n-1)
D. an = 
n-1 - 
Answer: C
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Which of the following does not occur in tessellations? ?
A. ?A regular polygon tessellates about a point. B. ?An equilateral triangle tessellates about a point. C. ?A square tessellates about a point because 4 rotations of 90? completes the tessellation. D. ?A regular hexagon tessellates about a point because 3 rotations of 120? completes the tessellation. E. ?There are no other regular polygons with sides greater than 6 which tessellate.
Simplify the expression by combining any like terms.2x2 - 4x - 7 + 6x - 6 + 4x2
A. 6x2 + 2x - 13 B. -5x3 C. 6x4 + 2x2 - 13 D. -3x2 + 8x - 10
Solve the rational equation. Be sure to verify the results.
- 
= 
A. {30} B. {-15} C. {18} D. {15}
Evaluate the sum.
A. 86 B. 66 C. 35 D. 93