document.write( "Question 204208: The profit function for a computer company is given by P(x) = -x^2+ 25x - 24 where x is the number of units produced (in thousands) and the profit is in thousand of dollars.
\n" ); document.write( "a) Determine how many (thousands of) units must be produced to yield maximum profit. Determine the maximum profit.\r
\n" ); document.write( "\n" ); document.write( "(thousands of) units =?\r
\n" ); document.write( "\n" ); document.write( "maximum profit = ? thousand dollars
\n" ); document.write( "b) Determine how many units should be produced for a profit of at least 40 thousand.\r
\n" ); document.write( "\n" ); document.write( "more than ?(thousands of) units\r
\n" ); document.write( "\n" ); document.write( "less than ?(thousands of) units \r
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\n" ); document.write( "\n" ); document.write( "(the question marks are where I need answers)
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Algebra.Com's Answer #154176 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
The profit function for a computer company is given by P(x) = -x^2+ 25x - 24 where x is the number of units produced (in thousands) and the profit is in thousand of dollars.
\n" ); document.write( "a) Determine how many (thousands of) units must be produced to yield maximum profit. Determine the maximum profit.
\n" ); document.write( "---
\n" ); document.write( "Maximum profit occurs when x = -b/2a = -25/(2*-1) = 12.5
\n" ); document.write( "
\n" ); document.write( "(thousands of) units =12.5
\n" ); document.write( "maximum profit = -12.5^2+25*12.5 - 24 = 132.5 thousand dollars
\n" ); document.write( "---------
\n" ); document.write( "b) Determine how many units should be produced for a profit of at least 40 thousand.
\n" ); document.write( "-x^2+25x - 24 >= 40
\n" ); document.write( "-x^2+25x-64 = 0
\n" ); document.write( " x = [-25 +- sqrt(625 - 4*-1*-64)]/(-2)
\n" ); document.write( "x = [-25 +- sqrt(369)]/-2
\n" ); document.write( "x = [-25 +- 19.209]/-2
\n" ); document.write( "x = 22.1 or x = 2.89
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\n" ); document.write( "more than 2.89(thousands of) units
\n" ); document.write( "less than 22.1(thousands of) units
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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