document.write( "Question 1186160: In the manufacture of widgets, the average dimension of a part is 0.005 cm. Using the absolute-value symbol, express the fact that an individual measurement x of a part does not differ from the average by more than 0.0006 cm. \n" ); document.write( "
Algebra.Com's Answer #817039 by Theo(13342)![]() ![]() You can put this solution on YOUR website! i believe the equation is going to be:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "abs(x - .005) <= .0006\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the absolute value property of an equation is such that:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "if the expression inside the absolute value sign is positive, then the inequality becomes:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "(x - .005) <= .0006\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "if the expression inside the absolute value sign is negative, then the inequality becomes:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "-(x - .005) <= .0006\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "we'll solve for when the expression inside the absolute value sign is positive.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "(x - .005) <= .0006\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "remove the parentheses to get:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x - .005 <= .0006\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "add .005 to both sides of the inequality to get:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x <= .0006 + .005\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "solve for x to get:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x <= .0056\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "now we'll solve for when the expression within the absolute value sign is negative.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "-(x - .005) <= .0006\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "multiply both sides of this inequality by -1 to get:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "(x - .005) >= -.0006\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "multiplying both sides of an inequality by a negative number reverses the inequality.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "that's why the inequality is now >= rather than <=.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "remove the parentheses to get:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x - .005 >= -.0006\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "add .005 to both sides of the inequality to get:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x >= -.0006 + .005\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "solve for x to get:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x >= .0044\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "your solution is that the absolute value inequality is:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "|x - .005| <= .0006\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "this leads to the value of x being greater than .0044 and less than .0056, which can be expressed as:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( ".0044 <= x <= .0056\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |