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skate2400
What is the 35th term of the arithmetic sequence where a1 = 13 and a17 = -51 ? -126 -123 -120 -117
lol seems no one has answered this yet so i will...well first step is you need to find the common difference..how? we let a17 be our a_n so the formula... \[\Large A_n = A_1 + (n-1)d\] like i said we let A17 be An that means our n = 17 \[\large -51 = 13 + (17-1)d\] can you try solving d?