Asked by jessica

find the sum. use the summation capabilities of a graphing utility to verify your result.

5
Sigma (3a)
k=2

??
Answered by Reiny
look like
6 + 9 + 12 + 15
= 42
Answered by jessica
hey reiny--thats what i thought as well but the online homework says that answer is wrong
Answered by Reiny
I am 100% sure I am correct, and so are you.

Did you copy it correctly?
Answered by jessica
yes...i copied it correctly..well i'll try again..thanks again