keellyxoxo
keellyxoxo
19-12-2017
Mathematics
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please help ASAP !!!!!!1
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jimthompson5910
jimthompson5910
19-12-2017
a(n) = a*(r)^(n-1)
a(n) = 3*(-4)^(n-1) ... plug in the given first term and common ratio
a(6) = 3(-4)^(6-1) ... plug in n = 6
a(6) = 3(-4)^5
a(6) = 3(-1024)
a(6) =
-3072
Answer: -3072
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