Question

Find the sum of a finite arithmetic sequence from n = 1 to n = 10, using the expression 3n − 8.

56
85
54
116

Answer 1

@Warriorz13
@psirockin2

Answer 2

I was thinking B

Answer 3

yes it would be 85

∑n=110(3n−8)=[3(1)−8]+[3(2)−8]+…[3(10)−8]

Answer 4

Correct

Answer 5

Thanks