More and more businesses and homeowners are installing panels on their roofs to draw energy from the sun’s rays. According to the U.S. Department of Energy, the solar cell kilowatt-hour use in the United States (in millions) is projected to be
S(t) = 0.73t² + 15.8t + 2.7 (0 ≤ t ≤8)
In year t, with t = 0 corresponding to 2000. What was the projected solar cell kilowatt-hours used in the United States for 2006? For 2008?
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S(6) = 0.73*36 + 15.8*6 + 2.7
S(6) = 123.78 million kilowatt-hours...