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 I = (T, v). 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 L(T, v) to the wind chill index function when T is near 16°C and v is near 30 kmh.
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L = -6.5 + 1.5T- 0.25v
Mathematics
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.Find t.
A. 
B. 
C. 
D. 
E. 
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x5
A. no
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; degree 5
Mathematics