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Mathematics 17 Online
OpenStudy (anonymous):

can someone please explain to me how they got 8 from this?? 3, –2, –7, –12 has a_1 = 3, d = –5, and n = 4. The explicit formula is a_n = 3 + (n – 1)(–5) = 8 – 5n

OpenStudy (anonymous):

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