For example, (x +1)*(x +1) is a term built from the constant 1, the variable x, and the binary function symbols + and *; it is part of the atomic formula (x +1)*(x +1) â¥ 0 which evaluates to true for each real-numbered value of x.
In recent weeks, the U.S. diesel fuel price has been hovering around $4.16 per gallon. LNG is selling for about $2.92 per diesel gallon equivalent, 30 percent less, according to Clean Energy Fuels' current price report, which is updated weekly.
Prices of raw gas sold to a refiner or gas company range from $5 to $25 per ton, compared to consumer market prices averaging $90 to $100 per ton; and, in some high-priced markets with little regional competition or no local supply, even $200 to $300 per ton. CO2 Uses Varied and Growing.