W = f(T,v) where W is the wind-chill index, T is the actual temperature, and v is the wind speed. A numerical representation is given below. Wind speed (km/h) 10 15 20 25 30 40 50 60 70 80 T 4 2 1 1 -1 -1 -2 -2 -3 -2 -3 -4 -5 -6 -6 -7 -8 -9 -9 -10 -5 -7 -9 -11 -12 -12 -13 -14 -15 -16 -16 -17 -10 -13 -15 -17 -18 -19 -20 -21 -22 -23 - 23 -24 -15 -19 -21 -23 -24 -25 -26 -27 -29 -30 -30 -31 - 20 -24 -27 -29 -30 -32 -33 -34 -35 -36 -37 -38 -25 -30 -33 -35 -37 -38 -39 -41 -42 -43 -44 -45 - 36 -39 -41 -43 -44 -46 -48 -49 - 50 -51 -52 -35 -41 -45 -48 -49 -51 -52 -54 -56 -57 -58 -60 -40 -47 -51 -54 -56 -57 -59 -61 -63 -64 -65 -67 a. What is the value of f(-15,40)? What is its meaning? b. Describe in words the meaning of the question "For what value of v is f(-20, v) = -30?" Then answer the question. 3.
W = f(T,v) where W is the wind-chill index, T is the actual temperature, and v is the wind speed. A numerical representation is given below. Wind speed (km/h) 10 15 20 25 30 40 50 60 70 80 T 4 2 1 1 -1 -1 -2 -2 -3 -2 -3 -4 -5 -6 -6 -7 -8 -9 -9 -10 -5 -7 -9 -11 -12 -12 -13 -14 -15 -16 -16 -17 -10 -13 -15 -17 -18 -19 -20 -21 -22 -23 - 23 -24 -15 -19 -21 -23 -24 -25 -26 -27 -29 -30 -30 -31 - 20 -24 -27 -29 -30 -32 -33 -34 -35 -36 -37 -38 -25 -30 -33 -35 -37 -38 -39 -41 -42 -43 -44 -45 - 36 -39 -41 -43 -44 -46 -48 -49 - 50 -51 -52 -35 -41 -45 -48 -49 -51 -52 -54 -56 -57 -58 -60 -40 -47 -51 -54 -56 -57 -59 -61 -63 -64 -65 -67 a. What is the value of f(-15,40)? What is its meaning? b. Describe in words the meaning of the question "For what value of v is f(-20, v) = -30?" Then answer the question. 3.
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter1: Fundamental Concepts Of Algebra
Section1.4: Fractional Expressions
Problem 83E
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Transcribed Image Text:W = f(T,v) where W is the wind-chill index, T is the actual temperature, and v is the
wind speed. A numerical representation is given below.
Wind speed (km/h)
10
15
20
25
30
40
50
60
70
80
4
3
2
1
1
-1
-1
-2
-2
-3
-2
-3
-4
-5
-6
-6
-7
-8
-9
-9-10
-5
-7
-9 -11
-12 -12 -13
-14
-15 -16 -16 -17
- 10
-13 -15
- 17 -18 -19 -20
-21
- 22 -23 -23 -24
-15
-19 -21
-23 -24 - 25 -26
-27
- 29 -30 -30 -31
- 20
-24 -27
-29
- 30 -32 -33 -34
- 35 -36 -37 -38
-25 -30 -33 -35 -37 -38 -39
-41
-42 -43 -44 -45
-30
-36 -39
-41
-43 -44
-46 -48
-49 -50 -51 -52
-35
-41
-45
-48 -49 -51
-52
-54
-56 -57 -58 -60
-40
-47 -51
-54
-56 -57 -59
-61
-63
-64 -65 -67
a. What is the value of f(-15,40)? What is its meaning?
b. Describe in words the meaning of the question "For what value of v is f(-20,v) =
-30?" Then answer the question.
Actual temperature (°C)
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