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Mathematics 18 Online
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

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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