One approximation of life expectancy, based on data from 1960 through 2007, is given by the linear equation
y = 0.20x + 65.9 for males
y = 0.15x + 73.6 for females
where x represents the number of years since 1960 that a person was born (x = 0 for 1960) and y is the expected age at death.
(a) Find the approximate life expectancy of a male born in 1950, 1980, 2010, 2025, and 2050.
(b) Find the approximate life expectancy of a female born in the same years.
(c) Estimate the year in which males will have a life expectancy of 100 years.
(d) Estimate the year in which females will have a life expectancy of 100 years.
(e) Find your life expectancy.
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