alunneya alunneya

25-06-2018
Mathematics

contestada

-8+(-4)+(-2)+(-1)+(-1/2)+.... what is the sum of the first 7 terms of the geometric series
A: -3.96875
B: -15.875
C: 2032
D: 508

Respuesta :

kingothepitch kingothepitch

03-07-2018

your answer is 15.875

-8+(-4)+(-2)+(-1)+(-1/2)+(-1/4)+(-1/8)
you half the previous vaule to find the next value

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