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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 -171,875, and the common ratio is -5
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OpenStudy (anonymous):
A -143,231 B -36,047 C 144,177 D 716,144
zepdrix (zepdrix):
Hi there :) So ummm...
zepdrix (zepdrix):
|dw:1406335898158:dw|The first term is -11.
zepdrix (zepdrix):
We multiply by our common ratio to get the second term.|dw:1406335928296:dw|
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