Need solving problem 3,4 and 5 . linear algebra for problems 3-7, solve the system using either gaussian elimination with back substitution or gauss-jordan elimination. 3. 2x +3y+z=10 2x-3y-3x=22 4x- 2y 3z=2 4. 2x y2z -4 2x 2y 5 2x- y+62#2 3x-2y + 1122.16 3x y7z--11

Sam makes his sales calls according to a pattern. he travels either north or south depending on the calendar. some of his past trips were as follows: on february 17, april 24, june 10, september 19, and november 3 he drove north. on february 28, may 25, august 22, november 20, and december 18, he drove south. describe sams' pattern. in which direction will sam drive on oct4 and oct 24?

The point of intersection of the diagonals of a rectangle is 4 cm further away from the smaller side then from the larger side of the rectangle. the perimeter of the rectangle is equal to 56 cm. find the lengths of the sides of the rectangle. 16 points answer quick

Which of the following represents the factorization of the trinomial below? x^2+7x-30