Figure 7 shows the rate R(t) of natural gas consumption (billions of cubic feet per day) in the mid-Atlantic states (New York, New Jersey, Pennsylvania). Express the total quantity of natural gas consumed in 2009 as an integral (with respect to time t in days). Then estimate this quantity, given the following monthly values of R(t):

Keep in mind that the number of days in a month varies with the month.

Transcribed Image Text:

3.18, 2.86, 2.39, 1.49, 1.08, 0.80, 1.01, 0.89, 0.89, 1.20, 1.64, 2.52