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The table lists fossil fuel production as a percentage of total energy production for selected years. A linear regression model for this data is y=-0.33x+94.8 ,where x represents years after 1960 and y represents the corresponding percentage of oil imports.
Year Fossil Fuel Production Production? (%)
1960 96
1970 91
1980 87
1990 84
2000 83
?(A Interpret the slope of the model.)
The rate of change of the percentage of oil imports with respect to time is % per year.
(B) Use the model to predict fossil fuel production in 2010.
In 2010 fossil fuel production as a percentage of total production will be about %.
?(C) Use the model to estimate the year in which fossil fuel production will fall below? 70% of total energy production.
In the year fossil fuel production is expected to fall below? 70% of total energy production.
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