An architecture designed to support security maybe based on either a centralized model, where all sensitive information is stored in one secure place, or a distributed model, where information is spread around in many different places. Suggest one advantage and disadvantage of each approach.

Least square fit to polynomial write a function leastsquarefit3pol that solves a linear system of equations to find a least squares fit of a third order polynomial to an experimental data set given as two row arrays. the function leastsquarefit3pol must explicitly solve a set of linear equations and cannot use polyfit. there should be no restriction on the size of the problem that can be solved.

As with any small island country, cuba has fewer natural resources than countries such as brazil. this affects their economy in that cuba a) exports only manufactured products. b) exports more products than it imports.. c) must import more products than it exports. d) has imposed trade barriers against the united states.

Three out of five seniors remain undecided about a college major at the end of their senior year.