Mathematics, 11.07.2019 01:30 Misspaige4453
What is a value of the 13th term of the sequence -7 negative 3 1 5?
Answers: 1
![\bf n^{th}\textit{ term of an arithmetic sequence} \\\\ a_n=a_1+(n-1)d\qquad \begin{cases} n=n^{th}\ term\\ a_1=\textit{first term's value}\\ d=\textit{common difference}\\[-0.5em] \hrulefill\\ a_1=-7\\ d=4\\ n=13 \end{cases} \\\\\\ a_{13}=-7+(13-1)4\implies a_{13}=-7+48\implies a_{13}=41](/tpl/images/0075/3603/21384.png)
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