When nicky tries to solve and equation using properties of equality she ended up with the equation -3=-3 what equation might she have tried to solve what ls the solution of the equation

The coverage of a base station of a telecommunication company forms a disk with a radius of (kilometers). let be the distance of a cellphone from a base station. assume that the location of cellphones in use are randomly uniformly distributed within the disk. calculate the mean and variance for the random variable.