document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=872862>Question 872862</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If  at rest the human heart beats once every second then what is the trigonometric equation for maximum blood pressure is 120mmHg, minimum blood pressure is 80mmHg and  t=0 corresponds to the peak of the beat.  also sketch the blood pressure over two heart beats. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #526510 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=526510\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If at rest the human heart beats once every second then what is the trigonometric equation for maximum blood pressure is 120mmHg, minimum blood pressure is 80mmHg and t=0 corresponds to the peak of the beat. also sketch the blood pressure over two heart beats.<BR>\n" );
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document.write( "Draw the picture.<BR>\n" );
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document.write( "average pressure is (120+80)/2 = 100<BR>\n" );
document.write( "So amplitude = 120-100 = 20<BR>\n" );
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document.write( "vertical shift = 100<BR>\n" );
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document.write( "Period = 1 second<BR>\n" );
document.write( "So, 1 = (2pi)/b<BR>\n" );
document.write( "b = 2pi<BR>\n" );
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document.write( "Cosine is maximum at t = 0<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "y = 20*cos(2pix)+100<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph%28400%2C400%2C-2%2C2%2C-10%2C140%2C20cos%282pi%2Ax%29%2B100%29 ALIGN=MIDDLE  ALT=\"graph%28400%2C400%2C-2%2C2%2C-10%2C140%2C20cos%282pi%2Ax%29%2B100%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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