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29 May, 23:24

What is the sum of the first

of this geometric sequence?

-5, 10, 20, 40, ...

+3
Answers (2)
  1. 30 May, 03:15
    0
    The answer is 65.

    Step-by-step explanation:

    You add 40+20+10=70-5=65
  2. 30 May, 03:20
    0
    minus 20
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