Chapter 12 Sequences and Series - 12.2 Analyze Arithmetic Sequences and Series - 12.2 Exercises - Skill Practice - Page 807: 47

$132$

Work Step by Step

For an arithmetic series, the sum for the finite series is given by: $S_n=\dfrac{n(a_1+a_n)}{2}$ Thus, we have $S_{8}=\dfrac{8 \times (-1+34)}{2}=132$ Hence, we have $s_{8}=\dfrac{8 \times (-1+34)}{2}=132$

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