Make Sense? In Exercises 76-79, determine whether each statement makes sense or does not make sense, and explain your reasoning. 76. There is an endless list of real numbers that cannot be included in the domain of f(x) = Vx. 77. I used a function to model data from 1990 through 2015. The independent variable in my model represented the number of years after 1990, so the function's domain was {0, 1, 2, 3, . . . , 25}. 78. If I have equations for functions f and g, and 3 is in both domains, then there are always two ways to determine (f + g)(3). 79. I have two functions. Function f models total world population x years after 2000 and function g models population of the world's more-developed regions x years after 2000. I can use f - g to determine the population of the world's less-developed regions for the years in both functions' domains.

Make Sense? In Exercises 76-79, determine whether each statement makes sense or does not make sense, and explain your reasoning. 76. There is an endless list of real numbers that cannot be included in the domain of f(x) = Vx. 77. I used a function to model data from 1990 through 2015. The independent variable in my model represented the number of years after 1990, so the function's domain was {0, 1, 2, 3, . . . , 25}. 78. If I have equations for functions f and g, and 3 is in both domains, then there are always two ways to determine (f + g)(3). 79. I have two functions. Function f models total world population x years after 2000 and function g models population of the world's more-developed regions x years after 2000. I can use f - g to determine the population of the world's less-developed regions for the years in both functions' domains.

Algebra and Trigonometry (6th Edition)

6th Edition

ISBN:9780134463216

Author:Robert F. Blitzer

Publisher:Robert F. Blitzer

ChapterP: Prerequisites: Fundamental Concepts Of Algebra

Section: Chapter Questions

Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...

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Question

Make Sense? In Exercises 76-79, determine whether each
statement makes sense or does not make sense, and explain your
reasoning.
76. There is an endless list of real numbers that cannot be
included in the domain of f(x) = Vx.
77. I used a function to model data from 1990 through 2015.
The independent variable in my model represented the
number of years after 1990, so the function's domain was
{0, 1, 2, 3, . . . , 25}.
78. If I have equations for functions f and g, and 3 is in both
domains, then there are always two ways to determine
(f + g)(3).
79. I have two functions. Function f models total world
population x years after 2000 and function g models
population of the world's more-developed regions x years
after 2000. I can use f - g to determine the population of
the world's less-developed regions for the years in both
functions' domains.

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