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Mathematics 12 Online
zarkam21:

1515?

zarkam21:

1 attachment
Vocaloid:

hm what did you get for a35?

zarkam21:

actually I rechecked my math is it 1890?

Vocaloid:

that's not what I got ;; how many seats did you find in row 35?

zarkam21:

n=35 and a35=20+34(2)=88, so S_35= 35/2[20+88]=1890

Vocaloid:

oh nvm yeah that's right

zarkam21:

Lol thanks =)))

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