Na aula anterior voce copiou o exercicio 1 da pagina 17 e faltou resolver o item c, resolva-o agora prestando atençao na regra de sinal, o resultado correto é?

Pls never taught i’m really confused and i rlly need

Assume that there is a 11% rate of disk drive failure in a year. a. if all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. if copies of all your computer data are stored on four independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?

Consider the following function. which of the following graphs corresponds to the given function? w. x. y. z. a. z b. y c. x d.