document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=36691>Question 36691</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0028241789/algebrahomeworkh>Algebra One Applications and connections</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Please Help!!!!!!!!!!! I really can't figure these out and I need someone really smart.....<BR>\n" );
document.write( "Janice tosses a softball upward with an intinal veolicty of 100 feet per second. Use the formula h=vt-16t^2 to answer each question.<BR>\n" );
document.write( "A. When the ball hits a height of 84 feet?<BR>\n" );
document.write( "B When will the ball hit the ground.\r<BR>\n" );
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document.write( "A box is to be formed from a rectangular piece of sheet metal by cutting squares measuring 5in on a side and then folding the sides. The piece of sheet metal is twice as long as its width. If the volume of the box is to be 1760in^3, what are the dimensions of the origional piece of metal. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #22584 by </B><A HREF=/tutors/aboutme.mpl?userid=venugopalramana><B>venugopalramana(3286)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=venugopalramana><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.geocities.com/venugopalramana/FREE_MATHS_ASSISTANCE.html valign=middle><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=22584\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Janice tosses a softball upward with an intinal veolicty of 100 feet per second. Use the formula h=vt-16t^2 <BR>\n" );
document.write( "H=100T-16T^2<BR>\n" );
document.write( "to answer each question.<BR>\n" );
document.write( "A. When the ball hits a height of 84 feet?<BR>\n" );
document.write( "H=84=100T-16T^2<BR>\n" );
document.write( "16T^2-100T+84=0...DIVIDE BY 4<BR>\n" );
document.write( "4T^2-25T+21=0<BR>\n" );
document.write( "4T^2-4T-21T+21=0<BR>\n" );
document.write( "4T(T-1)-21(T-1)=0<BR>\n" );
document.write( "(T-1)(4T-21)=0<BR>\n" );
document.write( "T-1=0....T=1....<BR>\n" );
document.write( "4T-21=0......T=21/4....<BR>\n" );
document.write( "HENCE IT WILL BE AT 84 FEET AT T=1 SEC WHEN IT IS GOING UP AND AT T=21/4=5.25 SEC.WHEN IT IS COMING DOWN.\r<BR>\n" );
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document.write( "B When will the ball hit the ground.<BR>\n" );
document.write( "WHEN THE BLL HTS THE GROUND H=0..SO..<BR>\n" );
document.write( "0=100T-16T^2<BR>\n" );
document.write( "4T(25-4T)=0<BR>\n" );
document.write( "4T=0......T=0...THAT IS BEFORE IT IS THROWN UP <BR>\n" );
document.write( "25-4T=0......4T=25.....T=25/4=6.25 SEC.IS THE ANSWER<BR>\n" );
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document.write( "A box is to be formed from a rectangular piece of sheet metal by cutting squares measuring 5in on a side and then folding the sides. The piece of sheet metal is twice as long as its width.<BR>\n" );
document.write( "LET WIDTH =B<BR>\n" );
document.write( "LENGTH =2B<BR>\n" );
document.write( "5\" CUT AT EACH CORNER.HENCE <BR>\n" );
document.write( "REMAINING LENGTH OF BOX =2B-2*5=2B-10=2(B-5)<BR>\n" );
document.write( "REMAINING WIDTH OF BOX =B-2*5=B-10<BR>\n" );
document.write( "HEIGHT OF BOX =5\"\r<BR>\n" );
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document.write( " If the volume of the box is to be 1760in^3, what are the dimensions of the origional piece of metal.\r<BR>\n" );
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document.write( "VOLUME = 5*2(B-5)(B-10)=1760.........(B-5)(B-10)=176<BR>\n" );
document.write( "B^2-15B+50=176<BR>\n" );
document.write( "B^2-15B-126=0<BR>\n" );
document.write( "B^2-21B+6B-126=0<BR>\n" );
document.write( "B(B-21)+6(B-21)=0<BR>\n" );
document.write( "(B-21)(B+6)=0<BR>\n" );
document.write( "B-21=0....B=21........THE OTHER ROOT IS NOT TENABLE AS IT GIVES NEGATIVE VALUES.<BR>\n" );
document.write( "HENCE ORIGINAL SHEET HAS <BR>\n" );
document.write( "LENGTH = 2*B=2*21=42\" AND <BR>\n" );
document.write( "WIDTH = 21\" </SPAN>\n" );
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