Solve the following system of equations using reduced row echelon form you may use the calculator for the rref but you need to show how to set up the system and the matrix and intepret the answer. if there is no solution, explain how you know. 3x,+2x,-5x,+2x,= 4 xx -1 x-3x,+4x,-6 2x, +3x,+3x-1 x+x-2x,-3 +2x,-x,2 b) a) 2x+4x,+x-3x,=-2 x-4x,-7x,-x,=-19

1234567891011 match the reasons with the statements in the proof. given: j | | k m 1 = m 3 prove: l | | m 1. j||k, m∠3 = m∠1 if lines are ||, then corresponding angles are =. 2. m∠1 = m∠2 if alternate interior angles are =, then lines are ||. 3. m∠2 = m∠3 substitution 4. l||m given

Identify the converse of the following conditional: if a point is in the first quadrant, then its coordinates are positive. if the coordinates of a point are not positive, then the point is not in the first quadrant. if the coordinates of a point are positive, then the point is in the first quadrant. if a point is in the first quadrant, then its coordinates are positive. if a point is not in the first quadrant, then the coordinates of the point are not positive.

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?