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# The average germination time g (measured in days) of a batch of seeds depends on the temperature T (measured in degrees centigrade) and the water...

The average germination time g (measured in days) of a batch of seeds depends on the temperature T (measured in degrees centigrade) and the water potential P (measured in megapascals).

If the temperature is 25 degrees centigrade and the water potential is −0.5 megapascals, the germination time is 1.893 days. Values of the partial derivatives under these conditions are

∂g

∂T

= −0.135 days per degree centigrade,

and

∂g

∂P

= −1.643 days per megapascal.

What would the approximate germination time be if the temperature was changed to 24.5 degrees centigrade, while keeping the water potential at −0.5 megapascals? (Give your answer correct to at least three decimal places.)