document.write( "Question 136214This question is from textbook Student Solutions Manual
\n" ); document.write( ": I have tried and i thought that you would lug in 6 for x. but for some reason that doesnt seem right to me. can you please help me.
\n" ); document.write( "Suppose that N=square root 16+4 models the number of cases of an infection, in millions, of a disease x years from now.
\n" ); document.write( "In approximately how many years will there be 6 million cases? \r
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Algebra.Com's Answer #99794 by solver91311(24713)\"\" \"About 
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No, you need to solve your equation for x, and then substitute 6 for N.\r
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\n" ); document.write( "\n" ); document.write( "You don't say where x goes in your formula, but I'm going to presume that it goes with the 4 and that both the 16 and the 4 are under the radical, like this:\r
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\n" ); document.write( "\n" ); document.write( "\"N=sqrt%2816%2B4x%29\"\r
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\n" ); document.write( "\n" ); document.write( "Square both sides:
\n" ); document.write( "\"N%5E2=16%2B4x\"
\n" ); document.write( "\"4x=N%5E2-16\"
\n" ); document.write( "\"x=%28N%5E2%2F4%29-4\"\r
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\n" ); document.write( "\n" ); document.write( "Now substitute 6 for N and do the arithmetic.
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