Find the number of terms in the arithmetic sequence.
-$9,17,25, \ldots, 105$
A) 13
B) 14
C) 11
D) 12

Name: Find the number of terms in the arithmetic sequence. -$9,17,25, \ldots, 105$ A) 13 B) 14 C) 11 D) 12
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Quizplus · Accepted Answer

The sequence is arithmetic with the first term $a = 9$ and common difference $d = 8$. The nth term is given by $a_n = a + (n-1)d$. Setting $a_n = 105$, we solve $9 + (n-1) \times 8 = 105$, which gives $n = 13$.

Find the Number of Terms in the Arithmetic Sequence 9,17,25,…,1059,17,25, \ldots, 1059,17,25,…,105

Find the Number of Terms in the Arithmetic Sequence $9,17,25, \ldots, 105$