The wind-chill index is modeled by the function W = 13.12 + 0.62157 - 11.37 0.16 + 0.39657v0.16 where T is the temperature (°C) and v is the wind speed (km/h). When T = -13°C and v = 30 km/h, by how much would you expect the apparent temperature W to drop if the actual temperature decreases by 1°C? (Round your answers to two decimal places.) 1.30 °C What if the wind speed increases by 1 km/h? -.0082 °C