document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=269025>Question 269025</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The lenght of a rectangle is 5cm more than 4 times it's width. The perimeter is 124cm find it's dimension?\r<BR>\n" );
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document.write( "Find the modulas 1A multi and argument<BR>\n" );
document.write( "Z=3+6i<BR>\n" );
document.write( "Z=-3-4i<BR>\n" );
document.write( "Z=8-3i<BR>\n" );
document.write( "z=-6-3i </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #197157 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=197157\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The length of a rectangle is 5cm more than 4 times it's width. The perimeter is 124cm find it's dimension?<BR>\n" );
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document.write( "Perimeter = 2(width + length)<BR>\n" );
document.write( "124 = 2(w + 4w+5)<BR>\n" );
document.write( "62 = 5w+5<BR>\n" );
document.write( "5w = 57<BR>\n" );
document.write( "w = 57/5<BR>\n" );
document.write( "w = 11 2/5 cm (width)<BR>\n" );
document.write( "length = 4w+5 = 4(57/5) + 5<BR>\n" );
document.write( "= (228/5) + (25/5)<BR>\n" );
document.write( "= 253/5<BR>\n" );
document.write( "= 50 3/5 cm (length)<BR>\n" );
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document.write( "Find the modulas 1A multi and argument<BR>\n" );
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document.write( "Comment: One of those is the length; the other is the angle.<BR>\n" );
document.write( "I'll let you decide which is modulas and which as argument.<BR>\n" );
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document.write( "Z=3+6i<BR>\n" );
document.write( "length = sqrt(3^2 + 6^2)<BR>\n" );
document.write( "angle = arctan(6/3) = 63.43 degrees<BR>\n" );
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document.write( "Z=-3-4i<BR>\n" );
document.write( "Note: This point is in the 3rd quadrant where tangents are<BR>\n" );
document.write( "positive but angles are between 180 and 270.<BR>\n" );
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document.write( "length = sqrt(3^2 + 4^2)<BR>\n" );
document.write( "angle = arctan(-4/-3) = 53.13 degrees which is 180+53.13 = 233.13<BR>\n" );
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document.write( "Z=8-3i<BR>\n" );
document.write( "length = sqrt(8^2+3^2)<BR>\n" );
document.write( "angle is in QIV; arctan(-3/8)= -20.56 degrees<BR>\n" );
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document.write( "z=-6-3i<BR>\n" );
document.write( "I'll leave this one to you.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
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