document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1077469>Question 1077469</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi can someone help me with this problem please? THANK YOU! \r<BR>\n" );
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document.write( "   At 3:00 p.m. one summer day,the wave height off the coast of harbourtown could be modeled with the equation y=3.3(2pi/7 t)+0.2,where t is measured in seconds and y in feet.Use the model to find the wave height from peak to trough.\r<BR>\n" );
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document.write( "   Select One:<BR>\n" );
document.write( "              a. 3.3ft <BR>\n" );
document.write( "              b. 0.2ft <BR>\n" );
document.write( "              c. 0.4ft<BR>\n" );
document.write( "              d. 6.6ft </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #691957 by </B><A HREF=/tutors/aboutme.mpl?userid=KMST><B>KMST(5328)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=KMST><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/cgi-bin/show-face.mpl?user=KMST><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=691957\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> There is a typo in this problem.<BR>\n" );
document.write( "If <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=3.3%28%282pi%2F7%29t%29 ALIGN=MIDDLE  ALT=\"y=3.3%28%282pi%2F7%29t%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > , <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y ALIGN=MIDDLE  ALT=\"y\"   DISABLED_style= \"max-width:90%; height:auto;\" > would increase with time without limit.<BR>\n" );
document.write( " <BR>\n" );
document.write( "It should be<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=3.3cos%28%282pi%2F7%29t%29%2B0.2=3.3cos%282pi%2At%2F7%29%2B0.2 ALIGN=MIDDLE  ALT=\"y=3.3cos%28%282pi%2F7%29t%29%2B0.2=3.3cos%282pi%2At%2F7%29%2B0.2\"   DISABLED_style= \"max-width:90%; height:auto;\" > or<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=3.3sin%28%282pi%2F7%29t%29%2B0.2=3.3sin%282pi%2At%2F7%29%2B0.2 ALIGN=MIDDLE  ALT=\"y=3.3sin%28%282pi%2F7%29t%29%2B0.2=3.3sin%282pi%2At%2F7%29%2B0.2\"   DISABLED_style= \"max-width:90%; height:auto;\" > .<BR>\n" );
document.write( "(Waves use a cosine or sine trigonometric function term).<BR>\n" );
document.write( "That way you would have an average height of 0.2 ft,<BR>\n" );
document.write( "but height oscillates between times where<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cos%28%282pi%2F7%29t%29=-1 ALIGN=MIDDLE  ALT=\"cos%28%282pi%2F7%29t%29=-1\"   DISABLED_style= \"max-width:90%; height:auto;\" > (or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cos%28%282pi%2F7%29t%29=-1 ALIGN=MIDDLE  ALT=\"cos%28%282pi%2F7%29t%29=-1\"   DISABLED_style= \"max-width:90%; height:auto;\" > depending on how the function is written),<BR>\n" );
document.write( "and times where the same trigonometric function's value is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1 ALIGN=MIDDLE  ALT=\"1\"   DISABLED_style= \"max-width:90%; height:auto;\" > .<BR>\n" );
document.write( "Since the trigonometric function is multiplied times <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3.3 ALIGN=MIDDLE  ALT=\"3.3\"   DISABLED_style= \"max-width:90%; height:auto;\" > ,<BR>\n" );
document.write( "that term would oscillate between <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-3.3 ALIGN=MIDDLE  ALT=\"-3.3\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3.3 ALIGN=MIDDLE  ALT=\"3.3\"   DISABLED_style= \"max-width:90%; height:auto;\" > ,<BR>\n" );
document.write( "a difference of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3.3-%28-3.3%29=highlight%286.6%29 ALIGN=MIDDLE  ALT=\"3.3-%28-3.3%29=highlight%286.6%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > . </SPAN>\n" );
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