Please help me ... write and draw a flowchart find the x^1 , x^2, x^3...x^n

Who invented the tv .hint it was 2 people

List the five on-board vehicle subsystems

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