Find the indicated term of the sequence.
$$\begin{array} { l }
a _ { n } = ( - 1 ) ^ { n } ( 5 n - 1 ) \
a _ { 29 } = \square
\end{array}$$
A) 139
B) - 144
C) - 146
D) 4
E) - 140

Question

Find the indicated term of the sequence.
$$\begin{array} { l } 
a _ { n } = ( - 1 ) ^ { n } ( 5 n - 1 ) \
a _ { 29 } = \square
\end{array}$$
A) 139
B) - 144
C) - 146
D) 4
E) - 140

Quizplus · Accepted Answer

To find the 29th term, $a_{29}$, substitute $n = 29$ into the given formula: $a_{29} = (-1)^{29}(5(29) - 1)$. Since $(-1)^{29} = -1$, and $5(29) - 1 = 145 - 1 = 144$, the result is $-144$.

Find the Indicated Term of the Sequence an=(−1)n(5n−1)a29=□\begin{array} { l } a _ { n } = ( - 1 ) ^ { n } ( 5 n - 1 ) \\a _ { 29 } = \square\end{array}an​=(−1)n(5n−1)a29​=□​

Find the Indicated Term of the Sequence $\begin{array} { l } a _ { n } = ( - 1 ) ^ { n } ( 5 n - 1 ) \\a _ { 29 } = \square\end{array}$