Use a graphing calculator or spreadsheet software to solve 4x + y + z = 1 8x – 4y – 7z = 2 5y + 9z = 3 using matrices.

—the graph shows how fast a strand of human hair grows. how many inches would the hair have grown in 5 months

If you have a set of parallel lines a and b cut by transversal x, if angle 1 = 167 degrees, what is angle 4 and why. also what is the measure of angle 5 and why? you need to use the names of the angle relationship and explain.

The circle below is centered at the point (3, 1) and has a radius of length 2. what is the equation?