Use Gauss-Jordan elimination to find the generalsolution for the following system of linear equations:. z2+ 3z3−z4= 0
−z1 − z2 − z3 + z4 = 0
−2z1 − 4z2 + 4z3 − 2z4 = 0

The length of a shadow of the building is 36m. the length of the pole, which is perpendicular to the ground, is 1.9m. the length of the pole's shadow is 1.52m. what is the height of the building?

What is the ratio for the surface areas of the cones shown below, given that they are similar and that the ratio of their radii and altitudes is 2: 1? submit

Aclothing designer is selecting models to walk the runway for her fashion show. the clothes she designed require each model’s height to be no more than y inches from 5 feet 10 inches, or 70 inches. which graph could be used to determine the possible variance levels that would result in an acceptable height, x?