The first three terms of an arithmetic sequence are 23, 22, 21, find the 86th term.
A) -62
B) -108
C) 1,954
D) -63

Name: The first three terms of an arithmetic sequence are 23, 22, 21, find the 86th term. A) -62 B) -108 C) 1,954 D) -63
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Quizplus · Accepted Answer

The common difference of the sequence is -1 (22 - 23 = -1). The nth term of an arithmetic sequence is given by the formula: a_n = a_1 + (n-1)d. Here, a_1 = 23, d = -1, and n = 86. So, a_86 = 23 + (86-1)(-1) = 23 - 85 = -62.

The First Three Terms of an Arithmetic Sequence Are 23