What is the correct order of precedence of the mathematical operators? a. parentheses, exponents, division, multiplication, addition, subtraction b. addition, exponents, division, subtraction, multiplication, parentheses c. subtraction, addition, division, multiplication, exponents, parentheses d. exponents, parentheses, division, multiplication, addition, subtraction

Jill wants to become a network professional. which certification would be useful for her? a. mcse b. pmp c. comptia a+ d. ccie

The following function returns a string of length n whose characters are all 'x'. give the order of growth (as a function of n) of the running time. recall that concatenating two strings in java takes time proportional to the sum of their lengths. public static string f(int n) { if (n == 0) return ""; if (n == 1) return "x"; return f(n/2) + f(n - n/2); } options: a) constant b) logarithmic c) linear d) linearithmic e)quadratic f)cubic g) exponential

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