document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=388361>Question 388361</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Translate the sentence into a mathematical equation. Be sure to identify the meaning of all symbols.\r<BR>\n" );
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document.write( "1 The profit derived from the sale of x video cameras is $420 per unit less the sum of $2700 costs plus $120 per unit.  <BR>\n" );
document.write( "   If P is profit and x the units sold, then P = 420x + 2700 - 120x or   <BR>\n" );
document.write( "   If P is profit and x the units sold, then P = 420x - (2700 + 120x) or   <BR>\n" );
document.write( "   If P is profit and x the units sold, then P =  - (2700 + ) or   <BR>\n" );
document.write( "   If P is profit and x the units sold, then P = 420x - (2700 - 120x) or   <BR>\n" );
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document.write( "2Find the center (h, k) and radius r of the circle.\r<BR>\n" );
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document.write( "x2 + (y + 4)2 = 36  <BR>\n" );
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document.write( "   (h, k) = (0, -4); r = 36  <BR>\n" );
document.write( "   (h, k) = (0, -4); r = 6  <BR>\n" );
document.write( "   (h, k) = (-4, 0); r = 36  <BR>\n" );
document.write( "   (h, k) = (-4, 0); r = 6  \r<BR>\n" );
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document.write( "3Write the expression in the standard form a + bi.\r<BR>\n" );
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document.write( "i-55  <BR>\n" );
document.write( "    1  <BR>\n" );
document.write( "   -1  <BR>\n" );
document.write( "   -i  <BR>\n" );
document.write( "   i  <BR>\n" );
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document.write( "4Find an equation for the line with the given properties. Express the answer using the general form of the equation of a line.\r<BR>\n" );
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document.write( "Parallel to the line 3x - 4y = 1; containing the point (-1, 0)  <BR>\n" );
document.write( "    3x - 4y = 4  <BR>\n" );
document.write( "   3x - 4y = -3  <BR>\n" );
document.write( "   -4x - 3y = 4  <BR>\n" );
document.write( "   -4x - 3y = 3 <BR>\n" );
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document.write( "5Find the real solutions, if any, of the equation. Use the quadratic formula.\r<BR>\n" );
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document.write( "x2 + 8x - 7 = 0  <BR>\n" );
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document.write( "   {-4 - , -4 + }  <BR>\n" );
document.write( "   {-1 - , -1 + }  <BR>\n" );
document.write( "   {4 + }  <BR>\n" );
document.write( "   {-4 - 2, -4 + 2}  <BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #274694 by </B><A HREF=/tutors/aboutme.mpl?userid=solver91311><B>solver91311(24713)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=solver91311><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=solver91311><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=274694\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font face=\"Garamond\" size=\"+2\">\r<BR>\n" );
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document.write( "One question per post.\r<BR>\n" );
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document.write( "2.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE \ \ \ \ \ \ \ \ \ \ \left(x\ -\ h\right)^2\ +\ \left(y\ -\ k\right)^2\ =\ r^2\">\r<BR>\n" );
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document.write( "is the equation of a circle with center at <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\Large (h,\,k)\"> and radius <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\Large r\">.  Hint:  Re-write your equation as:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE \ \ \ \ \ \ \ \ \ \ \left(x\ -\ 0\right)^2\ +\ \left(y\ -\ (-4)\right)^2\ =\ 6^2\"> \r<BR>\n" );
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document.write( "John<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE e^{i\pi} + 1 = 0\"><BR>\n" );
document.write( "My calculator said it, I believe it, that settles it<BR>\n" );
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