In this example we considered the function 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 in this table. %3D (a) What is the value of f(-20, 80)? What is its meaning? f(-20, 80) = -38 which means that if the temperature is -20°C and the wind speed is 80 km/h, then the air would feel equivalent to approximately -38 °C without wind. %3D (b) Describe in words the meaning of the question "For what value of v is f(-15, v) = -23?" The question is asking: when the temperature is .5 X °C, what wind speed gives a wind-chill index of .7 X °C? Answer the question. V = 5 X km/h (c) Describe in words the meaning of the question "For what value of T is f(T, 15) = -48?" The question is asking: when the wind speed is 5 x km/h, what temperature gives a wind-chill index of .47 X °C? Answer the question. T = -40 X °C

In this example we considered the function 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 in this table. %3D (a) What is the value of f(-20, 80)? What is its meaning? f(-20, 80) = -38 which means that if the temperature is -20°C and the wind speed is 80 km/h, then the air would feel equivalent to approximately -38 °C without wind. %3D (b) Describe in words the meaning of the question "For what value of v is f(-15, v) = -23?" The question is asking: when the temperature is .5 X °C, what wind speed gives a wind-chill index of .7 X °C? Answer the question. V = 5 X km/h (c) Describe in words the meaning of the question "For what value of T is f(T, 15) = -48?" The question is asking: when the wind speed is 5 x km/h, what temperature gives a wind-chill index of .47 X °C? Answer the question. T = -40 X °C

College Algebra

1st Edition

ISBN:9781938168383

Author:Jay Abramson

Publisher:Jay Abramson

Chapter6: Exponential And Logarithmic Functions

Section6.1: Exponential Functions

Problem 12SE: For the following exercises, consider this scenario: For each year t , the population of a forest of...

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