The Daily Consumption C (In Gallons)of Diesel Fuel on a Farm

question 37

Multiple Choice

The daily consumption C (in gallons) of diesel fuel on a farm is modeled by​ $C = 30.5 + 21.6 \sin \left( \frac { 2 \pi t } { 365 } + 10.3 \right)$ , ​
Where t is the time (in days) ,with t = 1 corresponding to January 1.
Use a graphing utility to select the graph of the model.
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