document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=469378>Question 469378</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Expenses = x2 + 800\r<BR>\n" );
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document.write( "where x = the number of smartphones in thousands. \r<BR>\n" );
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document.write( "The revenue (also in thousands of dollars) generated in selling the same amount is given by the expression 100x. That is,\r<BR>\n" );
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document.write( "Revenue = 100x\r<BR>\n" );
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document.write( "Use the following knowledge to determine the profit by subtracting the expenses from the revenue:\r<BR>\n" );
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document.write( "a.Give a polynomial expression that can be used to compute the profit. Briefly explain how this was done.<BR>\n" );
document.write( "b.Use the expression you just derived to compute the profit if 50,000 smartphones are sold. (Note: Remember that the profit is expressed in thousands of dollars, so a computed value of, say, 30 means $30,000.). Show the steps of the computation. After making the computation, interpret the results in real-life terms </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #322023 by </B><A HREF=/tutors/aboutme.mpl?userid=jorel1380><B>jorel1380(3719)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jorel1380><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=jorel1380><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=322023\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Profit=100x-(x2+800)<BR>\n" );
document.write( "P=-x2+100x-800<BR>\n" );
document.write( "f(50)=-(50)2+100(50)-800<BR>\n" );
document.write( "\"\"=5000-2500-800=5000-3300=1700<BR>\n" );
document.write( "Which means the profit off of 50000 smartphones is $1,700,000.. </SPAN>\n" );
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