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Mathematics, 09.09.2019 21:30 eweqwoewoji
The ratio of working-age population to the elderly in the united states (including projections after 2000) is given by the function below, with t = 0 corresponding to the beginning of 1995.†
![f(t) = {{4.1 if 0 \leq t \ \textless \ 5}, {-0.03t + 4.25 if 5 \leq t 15}, {-0.075t + 4.925 if 15 \leq t \leq 35}](/tex.php?f=f(t) = {{4.1 if 0 \leq t \ \textless \ 5}, {-0.03t + 4.25 if 5 \leq t 15}, {-0.075t + 4.925 if 15 \leq t \leq 35})
(a) sketch the graph of the function f.
(b) what was the ratio at the beginning of 2006? at the beginning of 2014?
2006
2014
(c) over what years is the ratio constant?
[1995, 2000]
[2010, 2030]
[0, 5]
[5, 15]
[2000, 2010]
(d) over what years is the decline of the ratio greatest?
[15, 35]
[2010, 2030]
[1995, 2000]
[2000, 2010]
[5, 15]
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