mpay1yeleerubeshart mpay1yeleerubeshart

13-07-2016
Mathematics

contestada

find the sum of the first 9 terms of the sequence. show all work for full credit. 2, -7, -16, -25, ...

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baxland baxland

13-07-2016

Sum is: -306 (n; n-1*9; n-2*9; ...; n-8*9)

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