document.write( "Question 892484: solve 16^ d-4= 3^3-d\r
\n" ); document.write( "\n" ); document.write( "solve 9^x=45 \r
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\n" ); document.write( "\n" ); document.write( "2. The formula p= P(base is 0) (1/2)^h/4795 , is the atmospheric pressure, P, in mm of mercury at elevation “h” meters above sea level. If P0 is 760 mm, at what elevation is the pressure 42 mm?\r
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\n" ); document.write( "\n" ); document.write( "2. The following equation models the world population “y”, in billions of people, “x” years after the year 2000.
\n" ); document.write( " y=6.72(1.014)^xo
\n" ); document.write( "In what year did the population reach about 8 billion?\r
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\n" ); document.write( "\n" ); document.write( "I get so lost can you show step by step for number 2 i know you sub. 200 where X But after i get lost
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Algebra.Com's Answer #540745 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
\"16%5E%28d-4%29=3%5E%283-d%29\"
\n" ); document.write( "\"%28d-4%29ln%2816%29=%283-d%29ln%283%29\"
\n" ); document.write( "\"ln%2816%29d-4ln%2816%29=3ln%283%29-ln%283%29d\"
\n" ); document.write( "\"ln%2816%29d%2Bln%283%29d=3ln%283%29%2B4ln%2816%29\"
\n" ); document.write( "\"d%28ln%2816%29%2Bln%283%29%29=3ln%283%29%2B4ln%2816%29\"
\n" ); document.write( "\"d=%283ln%283%29%2B4ln%2816%29%29%2F%28ln%2816%29%2Bln%283%29%29\"
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\n" ); document.write( "\"9%5Ex=45\"
\n" ); document.write( "\"x%2Aln%289%29=ln%2845%29\"
\n" ); document.write( "\"x=ln%2845%29%2Fln%289%29\"
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\n" ); document.write( "\"42=760%281%2F2%29%5E%28h%2F4795%29\"
\n" ); document.write( "\"42%2F760=%281%2F2%29%5E%28h%2F4795%29\"
\n" ); document.write( "\"ln%2842%2F760%29=%28h%2F4795%29ln%281%2F2%29\"
\n" ); document.write( "\"h%2F4795=ln%2842%2F760%29%2Fln%281%2F2%29\"
\n" ); document.write( "\"h=4795%2A%28ln%2842%2F760%29%2Fln%281%2F2%29%29\"
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\n" ); document.write( "\"8=6.72%281.014%29%5E%28X0%29\"
\n" ); document.write( "\"8%2F6.72=1.014%5E%28X0%29\"
\n" ); document.write( "\"ln%288%2F6.72%29=X0%2Aln%281.014%29\"
\n" ); document.write( "\"X0=ln%288%2F6.72%29%2Fln%281.014%29\"
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