DrPepper21 DrPepper21

22-12-2017
Mathematics

contestada

Find the sum of the first 9 terms of the sequence. Show all work for full credit.

2, -7, -16, -25, ...

Respuesta :

IAmAMathAddict IAmAMathAddict

24-02-2018

we can see the sequence goes by decreasing 9 on each number

so the numbers are

2, -7, -16, -25, -34, -43, -52, -61, -70

so adding all these numbers we get

2-7-16-25-34-43-52-61-70

= -306

hope this helped

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