document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=948537>Question 948537</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In the examples, my book roughly says \"for sounds with intensity \"I\" (in watts per square meter), the loudness L(I) of the sound (in decibels) is given by the function \" L(I) = 10log( I / Isub0 \" where Isub0 is the intensity of a barely audible sound (about 10^-12 watts per square meter).<BR>\n" );
document.write( "However, the problem in the homework asks \"The intensity of the sound of a trumpet is 10^3 watts per square meter. Find the decibel level of a trumpet.\"<BR>\n" );
document.write( "I tried guessing what to do with Isub0 (which was not written like that but I dont really know how to type that here) and i did not have any idea what to do. I hope you can help! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #579001 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20850)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><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=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=579001\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "given:\r<BR>\n" );
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document.write( "The intensity of the sound of a trumpet is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=I=10%5E3 ALIGN=MIDDLE  ALT=\"I=10%5E3\"   DISABLED_style= \"max-width:90%; height:auto;\" > watts per square meter.<BR>\n" );
document.write( " The intensity of a barely audible sound <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=I%5B0%5D=+10%5E-12+ ALIGN=MIDDLE  ALT=\"I%5B0%5D=+10%5E-12+\"   DISABLED_style= \"max-width:90%; height:auto;\" > watts per square meter.<BR>\n" );
document.write( "Find the decibel level of a trumpet.\r<BR>\n" );
document.write( "<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=L%28I%29+=+10log%28+I+%2F+I%5B0%5D%29 ALIGN=MIDDLE  ALT=\"L%28I%29+=+10log%28+I+%2F+I%5B0%5D%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >...........plug in given values\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=L%28I%29+=+10log%2810%5E3%2F10%5E%28-12%29%29 ALIGN=MIDDLE  ALT=\"L%28I%29+=+10log%2810%5E3%2F10%5E%28-12%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=L%28I%29+=+10log%2810%5E3%2F%281%2F10%5E12%29%29 ALIGN=MIDDLE  ALT=\"L%28I%29+=+10log%2810%5E3%2F%281%2F10%5E12%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=L%28I%29+=+10log%2810%5E3%2A10%5E12%29 ALIGN=MIDDLE  ALT=\"L%28I%29+=+10log%2810%5E3%2A10%5E12%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
document.write( "<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=L%28I%29+=+10log%2810%5E%283%2B12%29%29 ALIGN=MIDDLE  ALT=\"L%28I%29+=+10log%2810%5E%283%2B12%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
document.write( "<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=L%28I%29+=+10log%2810%5E15%29 ALIGN=MIDDLE  ALT=\"L%28I%29+=+10log%2810%5E15%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > ......<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=log%2810%5E15%29=15 ALIGN=MIDDLE  ALT=\"log%2810%5E15%29=15\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=L%28I%29+=+10%2A15 ALIGN=MIDDLE  ALT=\"L%28I%29+=+10%2A15\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=L%28I%29+=+150 ALIGN=MIDDLE  ALT=\"L%28I%29+=+150\"   DISABLED_style= \"max-width:90%; height:auto;\" > which is  the decibel level of a trumpet\r<BR>\n" );
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document.write( " </SPAN>\n" );
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