Find the first term and the common ratio of the geometric sequence.5, -5, 5, -5, 5, . . .
A. a1 = -1, r = -5
B. a1 = 5, r = 1
C. a1 = 5, r = -1
D. a1 = -1, r = 5
Answer: C
Mathematics
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A. 
B. 
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D. 
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Sets A, B, and C are given. Find the indicated set. A = {-8, -3, -1, 2, 5}, B = {-3, 2, 5, 7}, and C = {-1, 4, 9}A ? C
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A. 40 + 8m B. 40 + m C. 40m D. 40 + 5m
Mathematics