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Mathematics 13 Online
OpenStudy (anonymous):

hello please HELP !!! Find the 9th term of the arithmetic sequence. a3 = 12.2 and a4 = 12.6; a9 = ??.

OpenStudy (texaschic101):

a5 = 12.10 a6 = 12.14 a7 = 12.18 a8 = 12.22 a9 = 12.26 I know there is a formula, but I am not sure how to do it if you don't have the first term

OpenStudy (anonymous):

okay thanks

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