document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=119481>Question 119481</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Good evening ma'am or sir, please help on how to solve this problem involving expressions with exponents. I didn't know what I will do with this one.\r<BR>\n" );
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document.write( "4). Alpha Centauri is 4.3 light years from Earth. Express this distance in kilometers in scientific notation. (A light year is 9.5*10^12 km).\r<BR>\n" );
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document.write( "Thank you very much!!! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #87512 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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/cgi-bin/show-face.mpl?user=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=87512\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The units need to come out right. First, just write an equation with<BR>\n" );
document.write( "units only, like this:<BR>\n" );
document.write( "km = (light-years)(km/light-year)<BR>\n" );
document.write( "Notice, on the right side, light-years on top cancels the light-years<BR>\n" );
document.write( "on the bottom, and you're left with km = km as you should.<BR>\n" );
document.write( "Let d = distance in km.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d+=+4.3%2A9.5%2A10%5E12 ALIGN=MIDDLE  ALT=\"d+=+4.3%2A9.5%2A10%5E12\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d+=+40.85%2A10%5E12 ALIGN=MIDDLE  ALT=\"d+=+40.85%2A10%5E12\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d+=+4.085%2A10%5E13 ALIGN=MIDDLE  ALT=\"d+=+4.085%2A10%5E13\"   DISABLED_style= \"max-width:90%; height:auto;\" > answer </SPAN>\n" );
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