document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=230382>Question 230382</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How do I write a model for the given sunset information using time (t) as a function of days (d) if a year has 365 days. \r<BR>\n" );
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document.write( "Date		Day	Sunrise		Sunset<BR>\n" );
document.write( "Mar 20		80	6:14		6:22<BR>\n" );
document.write( "June 20 	172	4:44		7:38<BR>\n" );
document.write( "Sept 22		266	5:57		6:06<BR>\n" );
document.write( "Dec 21		356	7:25		4:52\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #170596 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=170596\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> How do I write a model for the given sunset information using time (t) as a function of days (d) if a year has 365 days. <BR>\n" );
document.write( "Date Day Sunrise Sunset<BR>\n" );
document.write( "Mar 20 80 6:14 6:22<BR>\n" );
document.write( "June 20 172 4:44 7:38<BR>\n" );
document.write( "Sept 22 266 5:57 6:06<BR>\n" );
document.write( "Dec 21 356 7:25 4:52 <BR>\n" );
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document.write( "You have to convert those dates to day of the year.<BR>\n" );
document.write( "You have to convert those times to a 24 hour time-clock<BR>\n" );
document.write( "Ex:  6:22 is approx 18 1/3 hr<BR>\n" );
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document.write( "Plot your (day,sunset time) points<BR>\n" );
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document.write( "Run a Sine Regression program against the 4 points to<BR>\n" );
document.write( "see a trig function that models the sunset changes.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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