document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=478031>Question 478031</A>: <I><SPAN STYLE=\"word-break: break-all;\"> This week in class we are dealing with negative exponents and solving radical expressions. These are commonly used in many different formulas. <BR>\n" );
document.write( "Part a: Solve for x: <BR>\n" );
document.write( "a=bx^(-2)\r<BR>\n" );
document.write( "\n" );
document.write( "Part B: <BR>\n" );
document.write( "Given the following information, solve for b: a = 1000, x = 2325<BR>\n" );
document.write( "Also: a = 1000, x = 245\r<BR>\n" );
document.write( "\n" );
document.write( "2. <BR>\n" );
document.write( "The Pythagorean Theorem is a^2+b^2=c^2. <BR>\n" );
document.write( "Solve the equation for b. <BR>\n" );
document.write( "Part 2: If c = 225, and a = 121, solve for b. <BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #327554 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=327554\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Part a: Solve for x: <BR>\n" );
document.write( "a=bx^(-2)<BR>\n" );
document.write( "Multiply thru by x^2 to get:<BR>\n" );
document.write( "ax^2 = b<BR>\n" );
document.write( "x^2 = b/a<BR>\n" );
document.write( "x = +/-sqrt[b/a]<BR>\n" );
document.write( "================================================= <BR>\n" );
document.write( "Part B: <BR>\n" );
document.write( "Given the following information, solve for b: a = 1000, x = 2325<BR>\n" );
document.write( "b = ax^2<BR>\n" );
document.write( "b = 1000*2325^2<BR>\n" );
document.write( "------------------------<BR>\n" );
document.write( "Also: a = 1000, x = 245<BR>\n" );
document.write( "b = 1000*245^2<BR>\n" );
document.write( "================================================== <BR>\n" );
document.write( "2. <BR>\n" );
document.write( "The Pythagorean Theorem is a^2+b^2=c^2. <BR>\n" );
document.write( "Solve the equation for b.<BR>\n" );
document.write( "b^2 = (c^2-a^2)<BR>\n" );
document.write( "b = +/-sqrt(c^2-a^2)<BR>\n" );
document.write( "----------------------------------------------- <BR>\n" );
document.write( "Part 2: If c = 225, and a = 121, solve for b.<BR>\n" );
document.write( "Solutions:<BR>\n" );
document.write( "b = +/-sqrt(225^2-121^2)<BR>\n" );
document.write( "b = +/-189.6945<BR>\n" );
document.write( "----<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. <BR>\n" );
document.write( "===============<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );