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OpenStudy (anonymous):
What is the sum of a 7-term geometric series if the first term is -11, the last term is -45,056, and the common ratio is -4? Choose one answer. a. -143,231 b. -36,047 c. 144,177 d. 716,144
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OpenStudy (anonymous):
The formula for the sum of a Geometric series is a * (1-r^n) / (1 - r)
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