Consider a linear system with 5891 equations and 3789 variables. Let A be the augmented matrix for this system. Required:
Let FA be the linear transformation whose standard matrix is A. Write down the domain and codomain of FA.

Apinhole camera is made out of a light-tight box with a piece of film attached to one side and pinhole on the opposite side. the optimum diameter d(in millimeters) of the pinhole can be modeled by d=1.9[ (5.5 x 10^-4) l) ] ^1/2, where l is the length of the camera box (in millimeters). what is the optimum diameter for a pinhole camera if the camera box has a length of 10 centimeters