115 C H A P T E R 3 Linear Equations and Matrices In this chapter we introduce matrices via the theory of simultaneous linear equations. This method has the advantage of leading in a natural way to the concept of the reduced row-echelon form of a matrix. In addition, we will for-mulate some of the basic results dealing with the existence and uniqueness of systems of linear equations.
United States has a total of 19,924 km of coastline. In Argentina, that number is 4,989 km. Category: United States vs. Argentina - Coastline. The statistics on this page are calculated using data sourced from The World Factbook (2017 data).
One of the world's largest salt lakes, and the second-largest lake in Argentina, is Lago Mar Chiquita (Little Sea), located in central Argentina. Its surface area varies from year to year and season to season, but during its wettest periods it has spanned 5,770 square kilometers (2,228 square miles).