The North PacificBoard

Democatic Donkeys wrote:

Seven.

............... Show your work.

Rainbow forest wrote:

Damn we haven't done determinants for non 2x2 matrices :O

I'll give you a hint.

| 0 0 1 0 0 |
| 1 0 0 0 0 |
| 1 1 0 0 0 |
| 0 1 1 0 0 |
| 1 0 1 0 1 |

Democatic Donkeys wrote:

Ohhhh. It’s still seven.

The third principle of determinants: A determinant with a null row or column is 0.

EooE

Rainbow forest wrote:

Solve

7
Σ 5(n-3)
n=1

Apologies, I haven't learned about convergent series but I will go based on inference. I will very likely be wrong.

The sum of 5(n-3) in a series of seven terms.

5(1-3) + 5(2-3) + 5(3-3) + 5(4-3) + 5(5-3) + 5(6-3) + 5(7-3)

-10 - 5 + 0 + 5 + 10 + 15 + 20

35?

Paxiosolange wrote:

Apologies, I haven't learned about convergent series but I will go based on inference. I will very likely be wrong.

The sum of 5(n-3) in a series of seven terms.

5(1-3) + 5(2-3) + 5(3-3) + 5(4-3) + 5(5-3) + 5(6-3) + 5(7-3)

-10 - 5 + 0 + 5 + 10 + 15 + 20

35?

You did it, but the whole point is not to add them all up silly!

Correct solution, according to the answer key
f(1) = 5(1-3) = 5(-2) = -10
f(7) = 5(7-3) = 5(4) = 20
sum = 7/2 (-10 + 20) = 7/2(10) = 35

*Glares deeply into the souls of the people of the RMB*

~LL, Just an Observer

Fauzjhia wrote:

Does the north Pacific has a nuke faction ??

I love nukes

https://www.youtube.com/watch?v=JyvjeDtdq3k&ab_channel=snakaye

WHOOOO IS GETTTTINGGGG READDDDYYYY TOOOOO NUKKKKEEEEEEEE!!!!

Praeceps wrote:

WHOOOO IS GETTTTINGGGG READDDDYYYY TOOOOO NUKKKKEEEEEEEE!!!!

I am?? Maybe. How much work is it?

Praeceps wrote:

Just 24 hours of non-stop frantically switching puppets, converting production and launching nukes/shields.

or just 5 minutes of play until you get nuked...

I'll probably be in school so :/