The wind-chill index is modeled by the function w = 13.12 + 0.6215t â’ 11.37v0.16 + 0.3965tv0.16 where t is the temperature (â°c) and v is the wind speed (km/h). when t = â’19â°c and v = 25 km/h, by how much would you expect the apparent temperature w to drop if the actual temperature decreases by 1â°c? (round your answers to two decimal places