Which statements are true? Select 4 options. An instance of a class cannot be changed after it is created.

Variables defined in the constructor of a class can be accessed by the main program that uses instances of the class.

A class variable can be a different type of class.

A class variable can be a list of instances of a different class.

Functions defined in a class are called methods.

Provide an example of a project that combines the three principles of lean six sigma with business project management (bpm) and services oriented architecture (soa). identify the elements of the project that comply with each of three principles.

Write a function balancechemical to balance chemical reactions by solving a linear set of equations. the inputs arguments are: reagents: symbols of reagents in string row array products: symbols of products in string row array elements: elements in the reaction in string row array elcmpreag: elemental composition of reactants in two dimensional numeric array elcmpprdcts: elemental composition of prducts in two dimensional numeric array hint: the first part of the problem is setting up the set of linear equations that should be solve. the second part of the problem is to find the integers from the solution. one way to do this is to mulitiply the rational basis for the nullspace by increasing larger integers until both the left-and right-side integers exist. for example, for the reaction that involves reacting with to produce and : reagents=["ch4", "o2"]; products =["co2", "h2o"]; elements =["c","h", "o"] elcmpreag=[1,4,0;

Arah has entered data about football players from team a and team b in a worksheet. she enters names of players from team a with details about each player in different columns of the worksheet. similarly, she enters details of all the players from team b. which option will her view the data for team a and team b in two separate sections after printing? a. page break view b. freeze pane view c. split screen view d. full screen view e. zoom out view