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Mathematics 13 Online
OpenStudy (anonymous):

An environmentalist monitoring a receding lake notices that the volume of the lake is modeled by Vn=2550*3^-0.7n, where n is the number of months after the initial observation and Vn is measured in cubic feet. Once the lake is down to 20% of its original volume, life is no longer sustainable in the surrounding area. How long will it be until this event happens? I already got my answer which was 2.0928 years, but I wanna know if it's right

OpenStudy (anonymous):

yep.. that's what i got... :)

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