Life expectancy is the key metric for assessing population health. The following graph shows the life expectancy for the United States and Africa between the years 1970 and 2020. Let U(t) represent the life expectancy (in years) in the United States and A(t) represent the life expectancy (in years) in Africa, where f is the number of years since 1970. Life Expectancy in Vears PS N PSa NI NA S Uited ate 4.9 60 Ata SL4 MA 40 e 1s I IS 1 200 200s 2010 201s 2000 a Year Evaluate (U – A) (20) and give a practical interpretation. O (U - A) (20) = -14.0 In 2020, the life expectancy in the United States was 14.0 years less than the life expectance in Africa. O (U - A) (20) = 23.1 In 1990, the life expectancy in the United States was 23.1 years more than the life expectancy in Africa. O None of these O (U – A) (20) = -23.1 In 1990, the life expectancy in the United States was 23.1 years less than the life expectancy in Africa. O (U - A) (20) = 14.0 In 2020, the life expectancy in the United States was 14.0 years more than the life expectance in Africa.

Life expectancy is the key metric for assessing population health. The following graph shows the life expectancy for the United States and Africa between the years 1970 and 2020. Let U(t) represent the life expectancy (in years) in the United States and A(t) represent the life expectancy (in years) in Africa, where f is the number of years since 1970. Life Expectancy in Vears PS N PSa NI NA S Uited ate 4.9 60 Ata SL4 MA 40 e 1s I IS 1 200 200s 2010 201s 2000 a Year Evaluate (U – A) (20) and give a practical interpretation. O (U - A) (20) = -14.0 In 2020, the life expectancy in the United States was 14.0 years less than the life expectance in Africa. O (U - A) (20) = 23.1 In 1990, the life expectancy in the United States was 23.1 years more than the life expectancy in Africa. O None of these O (U – A) (20) = -23.1 In 1990, the life expectancy in the United States was 23.1 years less than the life expectancy in Africa. O (U - A) (20) = 14.0 In 2020, the life expectancy in the United States was 14.0 years more than the life expectance in Africa.

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Description: Life expectancy is the key metric for assessing population health. The followinggraph shows the life expectancy for the United States and Africa between the years1970 and 2020. Let U(t) represent the life expectancy (in years) in the UnitedStates an

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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