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 crude oil contains 42 gallons which creates 45 gallons of petroleum products About 47% of each barrel of crude oil is refined into automobile gasoline In the US an average of about 2.5 gallons of crude oil are consumed per person each day The US imports about 40% of its required crude oil and about 52% of that amount comes from OPEC countries