The wind-chill index I is the perceived temperature when the actual temperature is T and the wind speed is v so we can write
The following table of values is an excerpt from a table compiled by the National Atmospheric and Oceanic Administration.Use the table to find a linear approximation
to the wind chill index function when T is near
and v is near 30 kmh. 
Correct Answer:
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Q30: Find Q31: Determine the largest set on which the Q32: Find the first partial derivatives of the Q33: Use polar coordinates to find the limit. Q34: Q36: Use the linearization L(x, y) of the![]()

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