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vera_ewing
 one year ago
Check my answer please
vera_ewing
 one year ago
Check my answer please

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Don't think so. The common ratio is 2.

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1none of them are correct common ratio = 10 according to the question.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Common ratio is any term divided by the term immediately preceding it.\[\frac{ 10 }{ 5 } = 2\]

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1oh sorry I misread the question The second term is 10.!!!

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1as ospreytriple has said the common ratio r can be found by second term / first term = 10 / 5

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0In general,\[a_n = a_1\left( r \right)^{n1}\]For the first term (n=1) you would get\[a_1=a_1\left( r \right)^{11} = a_1\]In your question, \(a_1 = 5\) and \(r = 2\)

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1hint: first term is when n = 1

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Well, if you think the answer is B, try n=0 and see what you get.
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