The following table gives the emissions, E, of nitrogen oxides in millions of metric tons per year in a country. Let t be the number of years since 1970 and E = f(t). Year 1970 1975 1980 | 1985 1990 | 1995 2000 E 26.7 26.3 27.2 25.7 25.3| 25.2 22.5 30 (a) What are the units and meaning of f(t)dt? The units are The integral represents the

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Evaluating integral of 30 and 0 from table which can be found in attachment

The following table gives the emissions, E, of nitrogen oxides in millions of metric tons per year in a country. Let t be the number of
years since 1970 and E = f(t).
Year
1970
1975
1980
1985
1990 1995
2000
E
26.7
26.3
27.2
25.7
25.3
25.2
22.5
30
(a) What are the units and meaning of
f(t)dr?
The units are
The integral represents the
Transcribed Image Text:The following table gives the emissions, E, of nitrogen oxides in millions of metric tons per year in a country. Let t be the number of years since 1970 and E = f(t). Year 1970 1975 1980 1985 1990 1995 2000 E 26.7 26.3 27.2 25.7 25.3 25.2 22.5 30 (a) What are the units and meaning of f(t)dr? The units are The integral represents the
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