What is the expected price of a calculator in the year 2000 if it costs $13.56 in 2015? You can use the chart below for a reference of CPI values.
Year CPI
1990 130.7
1995 152.4
2000 172.2
2005 195.3
2010 218.056
2015 237.017
5,678

(a) compute the maclaurin polynomial m2(x) for f(x) = cos x. (b) use the polynomial of part (a) to estimate cos π 12. (c) use a calculator to compute the error made using the estimate from part (b) for the value of cos π 12. remember that the error is defined to be the absolute value of the difference between the true value and the estimate.

There were 816 people at a concert when a band started to play. after each song, only half the people stayed to hear the next song. how many people were left at the concert after x songs? write a function to represent this scenario.

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