Telephone Service The percent P of households in the United States with wireless-only telephone service from 2005 through 2014 can be approximated by the model P = − 3 .42 + 1 .297 t ln t , 5 ≤ t ≤ 14 where t represents the year, with t = 5 corresponding to 2005 . (a) Approximate the percents of households with wireless-only telephone service in 2008 and 2012 . (b) Use a graphing utility to graph the function. (c) Can the model be used to predict the percent of households with wireless-only telephone service in 2020 ? in 2030 ? Explain.
Telephone Service The percent P of households in the United States with wireless-only telephone service from 2005 through 2014 can be approximated by the model P = − 3 .42 + 1 .297 t ln t , 5 ≤ t ≤ 14 where t represents the year, with t = 5 corresponding to 2005 . (a) Approximate the percents of households with wireless-only telephone service in 2008 and 2012 . (b) Use a graphing utility to graph the function. (c) Can the model be used to predict the percent of households with wireless-only telephone service in 2020 ? in 2030 ? Explain.
Solution Summary: The author calculates the percent of households with wireless-only telephones in 2008 and 2012, based on the model P=-3.42+1.297tmathrmlnt.
Telephone Service The percent
P
of households in the United States with wireless-only telephone service from 2005 through 2014 can be approximated by the model
P =
−
3
.42 + 1
.297
t
ln
t
,
5
≤
t
≤
14
where
t
represents the year, with
t
=
5
corresponding to
2005
.
(a) Approximate the percents of households with wireless-only telephone service in
2008
and
2012
.
(b) Use a graphing utility to graph the function.
(c) Can the model be used to predict the percent of households with wireless-only telephone
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, algebra and related others by exploring similar questions and additional content below.