19-07-2017
Mathematics

contestada

what is the 8th term of this geometric sequence 6,48,384,3072

Respuesta :

texaschic101 texaschic101

19-07-2017

common ratio can be found by dividing the 2nd term by the first
r = 48/6
r = 8

an = a1 * r^(n-1)
n = term to find = 8
a1 = first number = 6
r = common ratio = 8
now we sub
a(8) = 6 * 8^(8-1)
a(8) = 6 * 8^7
a(8) = 6 * 2097152
a(8) = 12582912 <==

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