olive2208 olive2208

19-07-2016
Mathematics

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what is the the value of the fourth term in a geometric sequence if a1=30 and r=1/2?

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septicnation2 septicnation2

19-07-2016

30/2 = 15 = term 2
15/2 = 7.5 = term 3
7.5/2 = 3.75 = term 4

the fourth term is 3.75

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