Posted by **plz help** on Friday, May 4, 2012 at 4:18pm.

In 1992, life expectancy of males in a certain country was 72.7 years. In 1999 it was 76.5 years. E represent the life expectancy in year 1 and t represent the number of years since 1992.

E(t)= [ ]+ [ ] round to nearest tenth

E(13)= [ ]round to neareast tenth

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