Using the functions described in Table 6-1 (predefined functions, for example the functions), write the following as a C++ expression. 1.

−b+√b^2-4ac/2a
2.

|x+2y^3−3|

Need asap write a short paper describing the history and differences between six sigma, waterfall, agile, and scrum models. understanding these models can give you a good idea of how diverse and interesting it development projects can be. describe what the rationale for them is and describe their key features. describe the history behind their development. at least 400 words

The following if statement contains a logic error, not a syntax error. rewrite it so that it is correct. assume the variable age already exists and holds a valid number. if (age == 18 & & age == 19) {

Which of the following "invisible" marks represents an inserted tab?