Finding the Domain Without the Graph. OK, so suppose we don't have the graph of a function to look at like in the last section... Can we still find the domain and range? So, we'll just be doing domains on these -- which is really where the action is anyway. Asking for the domain of a function is the same as asking. What are all the possible x guys.
1 barrel of crude oil = 42 US gallons (159 liters or 35 imperial gallons). It produces from about 35 percent to 42 percent of gasoline or petrol, plus many other products such as kerosene, etc.
One barrel of oil weighs about 0.136 metric tons, so thatâs about 707 barrels of crude in each car. A barrel of crude is about 42 gallons, so thatâs 29,696 gallons per car. These numbers are reasonably close, which is a good sanity check. Airplane fuel efficiency varies greatly depending on how full the plane is, the weather, and other factors, but we used a rough estimates of five miles per gallon.