document.write( "Question 1204408: The average temperature of a fictious town is given by the equation: f(x) = 20 sin (π/13x) + 2 where x represents the number of weeks since beggining of year. During the course of the year for how many weeks was the average temperature higher than 15° celcius \n" ); document.write( "

Algebra.Com's Answer #840632 by Edwin McCravy(20063) $\"\"$ $\"About$

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document.write( " or \r\n" );
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document.write( "It starts being above 15^o on week 2.9 from the first equation when n=0 \r\n" );
document.write( "and stops being above 15^o on week 10.1 from the second equation when n=0.\r\n" );
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document.write( "It starts being above 15^o on week 28.9 from the first equation when n=1 \r\n" );
document.write( "and stops being above 15^o on week 36.1 from the second equation when n=1.\r\n" );
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document.write( "Edwin

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