Question

Find the 6th partial sum.a n=3n−8

A) 98
B) 92
C) 102
D) 96

Answer 1

The 6th partial sum of the series is 15.

Step-by-step explanation:

To find the 6th partial sum of the series, we need to substitute the value of n from 1 to 6 into the given expression and then add them up:

1. a1 = 3(1) - 8 = -5
2. a2 = 3(2) - 8 = -2
3. a3 = 3(3) - 8 = 1
4. a4 = 3(4) - 8 = 4
5. a5 = 3(5) - 8 = 7
6. a6 = 3(6) - 8 = 10

Adding them up: -5 + (-2) + 1 + 4 + 7 + 10 = 15