document.write( "Question 91410: Suppose that N= squarerootx +2 models the number of cases of an infection, in millions, of a disease x years from now.\r
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document.write( " a) Approximately how many cases of the infection will there be 16 years from now?
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document.write( " b) In approximately how many years will there be 7 million cases? \r
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Algebra.Com's Answer #66369 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Suppose that N= squareroot(x) +2 models the number of cases of an infection, in millions, of a disease x years from now.\r \n" ); document.write( "\n" ); document.write( " a) Approximately how many cases of the infection will there be 16 years from now? \n" ); document.write( "Let x = 16 to get: \n" ); document.write( "N= sqrt(16) + 2 \n" ); document.write( "N= 4 + 2 \n" ); document.write( "N= 6 million \n" ); document.write( "================== \r \n" ); document.write( "\n" ); document.write( " b) In approximately how many years will there be 7 million cases? \r \n" ); document.write( "\n" ); document.write( "Let N= 7 and solve for \"x\": \n" ); document.write( "7 = sqrt(x) + 2 \n" ); document.write( "sqrt(x) = 5 \n" ); document.write( "x = 25 yrs. \n" ); document.write( "===================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "N= squarerootx +2 \n" ); document.write( "--------- \n" ); document.write( "Is the equation N= sqrt(x) + 2 \n" ); document.write( "or is it N=sqrt(x+2) ??\r \n" ); document.write( "\n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |