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Mathematics, 15.04.2021 02:30 mia13290

The fourth term in an arithmetic sequence is 7 and the seventh term is 16. If the first term is a1, which is an equation for the nth term of this sequence? (1) an = 9n + 7
(3) an = 3n + 7
(2) an = 9n – 5
(4) an = 3n – 5

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The fourth term in an arithmetic sequence is 7 and the seventh term is 16. If the first term is a1,...
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