document.write( "Question 289364: I am needing help solving this word problem- these are too confusing to me\r
\n" ); document.write( "\n" ); document.write( "The total profit (in dollars) for sales of x rowing machines is given by P(x)= -0.2^2 + 300x -200. What is the profit if 500 are sold? For what value of x will the profit be a at maximum?\r
\n" ); document.write( "\n" ); document.write( "Thanks,
\n" ); document.write( "Jen
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Algebra.Com's Answer #209595 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
Check you equation. There is something missing.
\n" ); document.write( "Probably an x in the term -0.2^2 It should probably be -0.2x^2
\n" ); document.write( "Otherwise it is a straight line.
\n" ); document.write( "so when you get the right equation, you should find the vertex.
\n" ); document.write( "-b/2a
\n" ); document.write( "here b is 300
\n" ); document.write( "a=-.2
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