Find the fifth term and the nth term of the geometric sequence whose initial term, a, and common ratio, r, are given.a = 8; r = -5

A. a5 = 5000; an = 8 ? (-5)n-1
B. a5 = -1000; an = 8 ? (-5)n-1
C. a5 = -1000; an = 8 ? (-5)n
D. a5 = 5000; an = 8 ? (-5)n


Answer: A

Mathematics

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