The wind-chill index is modeled by the function below where T is the temperature (°C) and v is the wind speed (km/h).
W = 13.12 + 0.6215T - 11.37v0.16 + 0.3965Tv0.16
When T = 13°C and v = 34 km/h, by how much would you expect the apparent temperature W to drop if the actual temperature decreases by 1°C? (Enter your answer to 1 decimal place.)
What if the wind speed increases by 1 km/h?(Enter your answer to 2 decimal places.)
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Depening on what class this is for, you may be supposed to do this with partial derivatives, but you can actually just plug in the given T and v, and compute an initial W, then change the T or v by the one unit as requested to get a final W, then just subtract to find the difference between W values.
yeah hes right
well yes i am suppose to use partial derivatives
then do as ive done....it should work...
I am....what about the dT=1 part?
dT is the change in actual temp, which is given to be 1 degree,