Question

Find the sum of each sequence

Answer 1

\[\sum_{k=1}^{40}5\]

@jim_thompson5910

Answer 2

@ganeshie8

Which formula would you use?

Answer 3

that's adding forty 5's together, so it's the same as 40(5)

Answer 4

\[\frac{ n(n+1) }{ 2 }\]

Would we use this?

Answer 5

Explain what you think this thing means as well as possible:

\[\sum_{k=1}^{40}5\]

Answer 6

Basically find the sum of the E but i tried plugging it in the formula but it didnt work

Answer 7

no that's for something like
\[\sum_{n=1}^{40}k\]
which is the sum of integers from 1 to 40

Answer 8

Oh yeaaa thats what i was wondering D:

So we just multiply40*5

Answer 9

yes

Answer 10

Thank you 200 is the answer :D

So 5 is replaced with "K" we would use the formula @peachpi

Answer 11

pretty much

Answer 12

Oh i see so 40(40+1) cause k =1

Thanks thanks :D