Equation in the replies
Which represents the series in the expanded form: ? (Points : 1)
1 + 2 + 3 + 4 + 5

2 + 4 + 6 + 8 + 10

2 + 3 + 4 + 5

2 + 3 + 4 + 5 + 6

Question

Equation in the replies
Which represents the series in the expanded form: ? (Points : 1)
       1 + 2 + 3 + 4 + 5

       2 + 4 + 6 + 8 + 10

       2 + 3 + 4 + 5

       2 + 3 + 4 + 5 + 6

anonymous · Answer

attachment

bibby · Answer

Write out each element

i = 1 | 2*1
i = 2 | 2*2
i = 3 | 2*3
i = 4 | 2*4
i = 5 | 2*5

anonymous · Answer

So where does that put me?

bibby · Answer

I have no idea. if you can't do basic arithmetic, it places you in the first grade

anonymous · Answer

I can do basic arithmetic. Thank you very much for the sarcasm

bibby · Answer

No problem. You're given a series definition.

Add over all of the products I listed

anonymous · Answer

if i add them all together i get 30

bibby · Answer

You don't have to add them in this problem. Just post the expanded form that is X + Y + Z

anonymous · Answer

I dont understand what you are telling me

bibby · Answer

(2*1)+(2*2)+...

anonymous · Answer

OHHH IM stupid (2*1)+(2*2)+(2*3)+(2*4)+(2*5)

bibby · Answer

yeah lol
simplify the products and pick the choice

anonymous · Answer

Thanks :D