calculate the sum of a 13th term sequence if the first term is 14 and the last term is 79

Question

0

783

2

Guest Oct 28, 2014

+23254

+5

Best Answer

If it's an arithmetic sequence, the sum is: S = N(F + L)/2

where: S = Sum N = Number of Terms F = First Term L = Last Term

S = 13(14 + 79)/2 = 604.5 <---- Provided that it is an arithmetic sequence.

geno3141 Oct 28, 2014

geno3141 · Answer 1 · 2014-10-28T05:14:03

If it's an arithmetic sequence, the sum is: S = N(F + L)/2

where: S = Sum N = Number of Terms F = First Term L = Last Term

S = 13(14 + 79)/2 = 604.5 <---- Provided that it is an arithmetic sequence.

Guest · Answer 2 · 2014-10-28T04:52:28

The answer is: i dont know