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OpenStudy (anonymous):
write a rule for the sequence -4,5,20,41,68 write a rule for the sequence -4,5,20,41,68 @Mathematics
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OpenStudy (anonymous):
-4, 5 , 20, 41, 68 -4 +9 =5 5+9+6 =20 20+15+6 =41 41+21+6=68
OpenStudy (precal):
It is not arithmetic nor geometric. I wonder what it could be?
OpenStudy (anonymous):
i'm not sure. i'm also supposed to use sigma notation to find the sum of the first 10 terms
OpenStudy (precal):
usually the sequences are arithmetic or geometric, but a sequence can be anything at all.
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