UPSB v4
Off-topic / math hw help
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Date: Sun, Jul 10 2011 14:28:42
1. An(A sub n)= 420, r= 3/2, Sn(S sub n)=1270 A1(A sub 1) = ?? 2. A1 = 3, An = 192, Sn = 129, r = ? n = ? 3. A1 = 6, r = 2, An = 3072, Sn = ? , n = ? I already answered 2 & 3 but not sure since I just did trial & error tnx
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Date: Sun, Jul 10 2011 15:42:29
(O )____( O) are you college ? Bec. I can't remember that in highschool and if I do, I will help :)
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Date: Sun, Jul 10 2011 16:51:51
is that supposed to be an arithmetic sequence? also what is s supposed to stand for? (n-1) or something else cuz if i knew what s is supposed to be then i can help you
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Date: Mon, Jul 11 2011 08:48:27
nvm delete this thread @Zombo @strat, we discussed it earlier, our teacher omitted these #'s