document.write( "Question 1062658: A right triangle is formed with vertices at the points (7,-2), (19,7), and (-5,14). What percent of the triangle's area lies in the fourth quadrant? \n" ); document.write( "
Algebra.Com's Answer #677654 by ikleyn(52781)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( "Be careful with the solution by Edwin.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The area of the triangle is ONE HALF of the determinant Edwin wrote.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "See the lesson \r \n" ); document.write( "\n" ); document.write( "https://www.algebra.com/algebra/homework/Matrices-and-determiminant/Determinant-of-a-2x2-matrix-and-the-area-of-a-parallelogram-and-a-triangle.lesson\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "https://www.algebra.com/algebra/homework/Matrices-and-determiminant/Determinant-of-a-2x2-matrix-and-the-area-of-a-parallelogram-and-a-triangle.lesson\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "in this site.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "OR see these links\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "https://people.richland.edu/james/lecture/m116/matrices/applications.html>https://people.richland.edu/james/lecture/m116/matrices/applications.html\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "https://people.richland.edu/james/lecture/m116/matrices/applications.html\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "http://demonstrations.wolfram.com/TheAreaOfATriangleUsingADeterminant/\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "http://mathforum.org/library/drmath/view/55063.html\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "So, the general path of the Edwin solution is correct, but intermediate numbers must be revised.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |