Answered: Wind speed (km/h) 20 30 40 50 60 70 T -…

Wind speed (km/h) 20 30 40 50 60 70 T - 10 - 18 - 20 -21 -22 -23 -23 - 15 -24 - 26 -27 -29 -30 -30 - 20 - 30 - 33 - 34 -35 - 36 -37 - 25 - 37 - 39 -41 -42 -43 - 44 Actual temperature ("C)

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter4: Polynomial And Rational Functions

Section4.1: Polynomial Functions Of Degree Greater Than

Problem 12E

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Question

The wind-chill index W is the perceived temperature when the actual temperature is T and the wind speed v,so we can write W=f(T,v). The following table of values is an excerpt from Table 1 in section 14.1.Use the table to find a linear approximation to the wind -chill index function when T is near -15°C and v is near 50km/h .Then estimate the wind -chill index when the temperature is -17°C and the wind speed is 55km/h.

Wind speed (km/h)
20
30
40
50
60
70
T
- 10
- 18 - 20 -21
-22 -23
-23
- 15
-24 - 26 -27
-29 -30 -30
- 20
- 30
- 33
- 34
-35
- 36
-37
- 25
- 37
- 39
-41
-42
-43
- 44
Actual temperature ("C)

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