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Suppose f(x) = 30.7 + 1.4log (x + 1) models salinity of ocean water to depths of 1000 meters at a certain latitude. x is
the depth in meters and f(x) is the salinity. Approximate the salinity (to the nearest hundredth) when the depth is
688 meters.
 May 7, 2012

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[input]f(x) = 30.7 + 1.4log (x + 1); f(688)[/input]
 May 7, 2012

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