Question

polynomial 0.0012x^3-0.075x^2+1.7x+11 models natural gas consumption in trillion of cubic feet, where x=0. corresponds to 1960, x=1 to 1961 and so on in which year between 1970 and 1990 was the natural gas consumption about 26.5 trillion cubic feet polynomial 0.0012x^3-0.075x^2+1.7x+11 models natural gas consumption in trillion of cubic feet, where x=0. corresponds to 1960, x=1 to 1961 and so on in which year between 1970 and 1990 was the natural gas consumption about 26.5 trillion cubic feet @Chemistry