document.write( "Question 1115190:
\n" );
document.write( " The number of inmates N (measured in thousands) in federal and state prisons can be approximated by the equation N=-2.06x^2 + 77.81x + 749, where x is the number of years since 1990. \r
\n" );
document.write( "\n" );
document.write( "In what year was the number of inmates expected to be 1,355,650? \n" );
document.write( "
Algebra.Com's Answer #730087 by greenestamps(13200)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "With the \"ugly\" numbers, it is easiest to solve this using a graphing calculator. \n" ); document.write( "Graph the given function and the constant and find where the graphs intersect. \n" ); document.write( "A couple of things to remember.... \n" ); document.write( "(1) x is years after 1990; \n" ); document.write( "(2) N is in thousands \n" ); document.write( "The graph should look something like this: \n" ); document.write( " \n" ); document.write( "You can see from the graph that, with the given function, there will be two different times when the number is 1,355,650. \n" ); document.write( " |