document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=27802>Question 27802</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the mass of a ball given by x^(2)+y^(2)+z^(2) <(and equal) a^(2) if the density at any point is proportional to its distance from the z-axis. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #15157 by </B><A HREF=/tutors/aboutme.mpl?userid=bmauger><B>bmauger(101)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=bmauger><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=15157\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Density is only useful in determining a mass if we have an equation for volume (mass = volume * density). Is that what the <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E%282%29%2By%5E%282%29%2Bz%5E%282%29 ALIGN=MIDDLE  ALT=\"x%5E%282%29%2By%5E%282%29%2Bz%5E%282%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > is an equation of? It seems this problem needs some missing details or some clarification. What is the inequality an inequality of?  What are x, y, z & a representative of (other than denisity is a function of z?  Sorry. </SPAN>\n" );
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