Solar Power. Photovoltaic solar power has becomemore affordable in recent years
Chapter 5, Problem 13(choose chapter or problem)
Solar Power. Photovoltaic solar power has becomemore affordable in recent years. Solar-power plantsproject that the average cost per watt of electricitygenerated by solar panels will decrease exponentiallyas shown in the graph below.Assuming that the cost per watt of electricitygenerated by solar panels will decrease accordingto the exponential decay model:a) Using the data for 2009 and 2013, find thevalue of k, and write an exponential functionthat describes the cost per watt of electricityafter time t, in years, where t is the number ofyears since 2009.b) Estimate the cost per watt of electricity in2015 and in 2018.c) At this decay rate, in which year will the averagecost per watt be $1.85?
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