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anonymous
 one year ago
What is the common ratio of the following geometric sequence? 5, 15, 45,...
any help please? math is hard for me .
anonymous
 one year ago
What is the common ratio of the following geometric sequence? 5, 15, 45,... any help please? math is hard for me .

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0The common ratio is determined by dividing and term by the term immediately preceding it. In general,\[r=\frac{ a_n }{ a_{n1} }\]In your question you could use\[r=\frac{ 15 }{ 5 }\]or\[r=\frac{ 45 }{ 15 }\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i got r=3 for both, so that would be the ratio?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0That's right. In a geometric sequence, the common ratio is the same no matter which two terms you use. That's why it's called a "common" ratio.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ohh okay! idk why online school makes this so hard to understand

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0There's lots of folks here that can help you understand anything you're not sure about.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i know, thank you again, is it okay if i tag u in other questions i may have? or just to have someone else check my anwser?
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