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).
Geography. 1  The city of Buenos Aires, the capital of Argentina, lies on the southern shore of the Rio de la Plata River in east-central Argentina. This largest city in Argentina covers 203 kmÂ² (78.5 sq mi) of land area while the metropolitan of Buenos Aires is spread over 4,758 kmÂ² (1,837.1 sq mi) area. Geographically, Buenos Aires city is situated in province of same name, but it is politically autonomous.