Solve 7x + 5y = 14 using matrices.
4x + 3y = 9

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827

Will mark determine whether the conjecture is true or false. give a counterexample for any false conjecture. given: points r, s, and t conjecture: r, s, and t are coplanar. a) false; the points do not have to be in a straight line. b) true c) false; the points to not have to form right angles. d) false; one point may not be between the other two.

What unit of been sure would be appropriate for the volume of a sphere with a radius of 2 meters