Dan is working with a team that is integrating an application with a database system. Which of these statements are true with regard to database systems? The testing phase of the SDLC creates databases.

Selection of a DBMS occurs during the designing phase of the SDLC.

Database development also has a life cycle, with phases similar to those of the SDLC.

All compilers intrinsically support database creation.

Databases use query language to perform operations.

You picked the corridor which led you here. if the guards find you, they're going to be really angry! what is the synonym of angry

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;

All of these are true about using adhesive except: a. dissimilar materials can be joined. b. mixing tips are product and material specific. c. a specific application gun may be required. d. two-part adhesives are dispensed using two mixing tips