aleCegliaecw aleCegliaecw

14-09-2016
Mathematics

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What is the seventh term of a sequence whose first term is 1 and whose common ratio is 3? a. 243 b. 729 c. 2,187

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HomertheGenius HomertheGenius

16-09-2016

This is a geometric sequence.
a 1 = 1, r = 3
T n = a 1 * r ^( n - 1 )
T 7 = 1 * 3^6
T 7 = 729
Answer: B ) 729

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