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Mathematics 21 Online
OpenStudy (anonymous):

Someone please help??

OpenStudy (anonymous):

It would help if you posted the question.

OpenStudy (anonymous):

yep

OpenStudy (anonymous):

the column on the right goes up by the odd numbers. and the column on the left goes up by +1+2+3+4+5 and i think the last number should be 21 not 20

OpenStudy (anonymous):

Yeah I changed that, but how do I find the equation?

OpenStudy (anonymous):

n+(n+1) for the left column. let me test that real fast. thats off the top of my head.

OpenStudy (anonymous):

nope that doesnt work

OpenStudy (anonymous):

n(n+1)/2 does that work ?

OpenStudy (anonymous):

no

OpenStudy (anonymous):

wait

OpenStudy (anonymous):

no that dont work either

OpenStudy (anonymous):

why not

OpenStudy (anonymous):

plug your numbers in and try it.

OpenStudy (anonymous):

i did...they all work lol.

OpenStudy (anonymous):

so what do you get when you are plugging 6 in for n

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