Question

PLEASE HELP! 25 POINTS AND BRANLIEST!!!!!! Find the sum of the series. Include each term that leads to the final sum and show the expression for finding that term.
The 5 is above the sigma, while the k=3 is below.
Please show work!
∑5 k=3(−2k+5)

Answer 1

Answer:

I think the answer is -9?

Step-by-step explanation:

5

∑ -2k + 5

k=3

= [-2(3) + 5] + [-2(4) + 5] + [-2(5) + 5]

=      -1 + -3 + -5

 = -9