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OpenStudy (anonymous):
What is the sum of a 6–term geometric series if the first term is 19 and the last term is 319,333?
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OpenStudy (anonymous):
is it 372,552
OpenStudy (lin.ivory):
have you tried using Sn = (a(1-r^n))/ (1-r) (im doing similar questions...so ill blehhh!!)
OpenStudy (lin.ivory):
yup!! its 372 552
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