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OpenStudy (anonymous):
Find the 9th term of the arithmetic sequence. a3 = 12.2 and a4 = 12.6; a9 = _____. 14.6 or 14.2 or 13.8 or 15.0
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jhonyy9 (jhonyy9):
a5=13, a6=13,4 a7=13,8 a8=14,2 a9=14,6
OpenStudy (anonymous):
a4 - a3 = 0.4 - this is the common difference d 9th term 12.6 +5(.04) = 14.6
OpenStudy (anonymous):
thank you very much last one yes help me?
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