## College Algebra (6th Edition)

First term(i = 1) $a_{1}$= (5$\times$1 + 3) = 5 + 3 = 8 Second term(i = 2)$a_{2}$ = (5$\times$2 + 3) = 10 + 3 = 13 Third term(i = 3)$a_{3}$ = (5$\times$3 + 3) = 15 + 3 = 18 Last term (i = 17) $a_{l}$ = (5$\times$17 + 3) = 85 + 3 = 88 The sequence becomes = 8 + 13 + 18 +......+ 88 Indicated Sum = 8 + 13 + 18 +......+ 88 = 816
First term(i = 1) $a_{1}$= (5$\times$1 + 3) = 5 + 3 = 8 Second term(i = 2)$a_{2}$ = (5$\times$2 + 3) = 10 + 3 = 13 Third term(i = 3)$a_{3}$ = (5$\times$3 + 3) = 15 + 3 = 18 Last term (i = 17) $a_{l}$ = (5$\times$17 + 3) = 85 + 3 = 88 The sequence becomes = 8 + 13 + 18 +......+ 88 Common difference (d)= 5 Number of terms (n) = 17 Indicated Sum = 8 + 13 + 18 +......+ 88 = $\frac{n}{2}$(first term + last term) = $\frac{17}{2}$(8 + 88) = $\frac{n}{2}$(96) = 17 $\times$ 48 = 816