Question 201608: find the 6th term of the sequence which has a first term of 5 and has a common ratio of 4.2
Answer by RAY100(1637)   (Show Source):
You can put this solution on YOUR website! Geometric series has form,,,,a(n) = a(1) * r^(n-1)
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a(1) =5,,,,r=4.2,,,,,n= 6
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a(6) = 5*4.2^ 5 = 6534.56
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checking,,5,,21,,,88.2,,370.44,,1555.848,,6534.56,,,,,ok
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