document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=174666>Question 174666</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/9781567655568/algebrahomeworkh>Amsco's Preparing for the Regents Examination Mathematics B</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> (12) The number of electric blankets sold at Jenkin's Home Furnishings from January 1 through December 31 can be represented by the function y= 680cos(pie/6 t) + 708 in which t is time in months with t =0 corresponding to january 1. Determine when the fewest electric blankets were sold and how many were sold.\r<BR>\n" );
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document.write( "Show work thanks </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #129707 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=129707\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The number of electric blankets sold at Jenkin's Home Furnishings from January 1 through December 31 can be represented by the function y= 680cos(pie/6 t) + 708 in which t is time in months with t =0 corresponding to january 1. Determine when the fewest electric blankets were sold and how many were sold. <BR>\n" );
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document.write( "y = 680cos((pi/6)t) + 708<BR>\n" );
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document.write( "The minimum value of cos occurs when the angle is pi radians.<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "(pi/6)t = pi<BR>\n" );
document.write( "t = 6 (time at which the cosine has its minimum value)<BR>\n" );
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document.write( "f(6) = 680cos[pi] + 708 = 680*-1 + 708 = 28<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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