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).
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. The Rio de la Plata on the east and the Riachuelo on south are the natural borders of the city. The metro offers shelter for about 13 million people.