document.write( "Question 1068827: a child care center has 200 feet of fencing to enclose two adjacent rectangular safe play areas (with one fencing in the adjacent side)\r
\n" ); document.write( "\n" ); document.write( "a)write total area of the play areas as a function of x
\n" ); document.write( "b)write the area function in standard form to find algebraically the dimensions that will produce the maximum enclosed area.\r
\n" ); document.write( "\n" ); document.write( "please help with my question! thank you!
\n" ); document.write( "

Algebra.Com's Answer #684091 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
Let \"+W+\" = width ( 3 equal sizes )
\n" ); document.write( "Let \"+L+\" = length ( 2 equal sizes )
\n" ); document.write( "\"+200+=+3W+%2B+2L+\"
\n" ); document.write( "\"+2L+=+200+-+3W+\"
\n" ); document.write( "\"+L+=+100+-+%283%2F2%29%2AW+\"
\n" ); document.write( "---------------------------
\n" ); document.write( "(a)
\n" ); document.write( "Let \"+A+\" = the total area
\n" ); document.write( "\"+A+=+W%2AL+\"
\n" ); document.write( "\"+A+=+W%2A%28+100+-+%283%2F2%29%2AW+%29+\"
\n" ); document.write( "\"+A+=+-%283%2F2%29%2AW%5E2+%2B+100W+\"
\n" ); document.write( "----------------------------
\n" ); document.write( "(b)
\n" ); document.write( "This is a parabola with a maximum due
\n" ); document.write( "to the minus sign.
\n" ); document.write( "The W-value of the function maximum is:
\n" ); document.write( "\"+W%5Bmax%5D+=+-b%2F%282a%29+\"
\n" ); document.write( "\"+W%5Bmax%5D+=+%28-100%29%2F%282%2A%28-3%2F2%29+%29+\"
\n" ); document.write( "\"+W%5Bmax%5D+=+100%2F3+\"
\n" ); document.write( "and
\n" ); document.write( "\"+L%5Bmax%5D+=+100+-+%283%2F2%29%2AW+\"
\n" ); document.write( "\"+L%5Bmax%5D+=+100+-+%283%2F2%29%2A%28100%2F3%29+\"
\n" ); document.write( "\"+L%5Bmax%5D+=+100+-+50+\"
\n" ); document.write( "\"+L%5Bmax%5D+=+50+\"
\n" ); document.write( "----------------------------
\n" ); document.write( " The lengths that give the maximum area are:
\n" ); document.write( "\"+W+=+33.333%0D%0A%7B%7B%7B+L+=+50+\"
\n" ); document.write( "-----------------
\n" ); document.write( "check:
\n" ); document.write( "\"+200+=+3W+%2B+2L+\"
\n" ); document.write( "\"+200+=+3%2A33.333+%2B+2%2A50+\"
\n" ); document.write( "\"+200+=+100+%2B+100+\"
\n" ); document.write( "and
\n" ); document.write( "\"+A+=+W%2AL+\"
\n" ); document.write( "\"+A+=+33.333%2A50+\"
\n" ); document.write( "\"+A+=+1666.667+\"
\n" ); document.write( "( note that you can replace \"+W+\" with \"+x+\" and
\n" ); document.write( "\"+A+\" with \"+y+\", and that will give \"+y+=+f%28x%29+\"
\n" ); document.write( "the way they want. )
\n" ); document.write( "Here's the plot of \"+A+=+f%28W%29+\"
\n" ); document.write( "\"+graph%28+400%2C+400%2C+-10%2C+100%2C+-200%2C+2000%2C+-%283%2F2%29%2Ax%5E2+%2B+100x+%29+\"
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