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Mathematics 18 Online
OpenStudy (anonymous):

Find the first, fourth, and eighth terms of the sequence. A(n)=-5*3^n-1 (A)–5; –135; –10,935 (B)1; –3,375; –170,859,375 (C)–15; –405; –32,805 (D)–45; –1,215; –98,415

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