The capacities at which U.S. nuclear power plants are working are shown in table for various years.
Year | Percent |
---|
1975 | 56 |
1980 | 59 |
1985 | 58 |
1990 | 70 |
1995 | 76 |
2000 | 88 |
2004 | 89 |
Let `f(t)` be the capacity (in percent) at which U.S. nuclear power plants are working at t years since 1970. A model of the situation is `f(t) = 0.027 t^2 + 0.216 t + 53.296`.
Use a graphing calculator to draw the graph of the model and, in the same viewing window, the scattergram of the data. Does the model fit the data well?
Estimate at what capacity U. S. nuclear power plants were working in 2009.
% Round to the nearest whole percent.
Predict when U. S. nuclear power plants will be working at full (100%) capacity.
Enter the year this occurs.
Box 1: Select the best answer
Box 2: Enter your answer as an integer or decimal number. Examples: 3, -4, 5.5172
Enter DNE for Does Not Exist, oo for Infinity
Box 3: Enter your answer as an integer or decimal number. Examples: 3, -4, 5.5172
Enter DNE for Does Not Exist, oo for Infinity