3) a) Find the augmented matrices of the linear system shown below х -у +2z %3D 2 X - z =1 2х + у + 4z 3 1 b) Determine which equations are linear equations in the variables x, y, and z. I) x² + y? + z? = 1 II) (cos3) x – 4y +z=(3)2

What is compression testing?

Pure aluminum resist corrosion better than aluminum alloy's. Therefore when corrosion is a design problem, pure aluminum is clad to the surfaces of the aluminum alloy. The cladding layers and core or bonded or welded together by heat and pressure of a rolling operation. True or false.

answer the following questions