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OpenStudy (anonymous):
What is the sum of the geometric series 20 + 21 + 22 + 23 + 23 + 24 + … + 29? A. 1,023 B. 511 C. 2,407 D. 1,012
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OpenStudy (anonymous):
NEED HELP!!!!!
geerky42 (geerky42):
Geometric? I think question is supposed to say "arithmetic" instead.
geerky42 (geerky42):
Also can't you just use calculator? It's just sum from 20 to 29.
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