What are the vertex, focus, and directrix of the parabola with the equation ? vertex (4, –3); focus (4, –4); directrix y = –2 vertex (–4, 3); focus (–4, –1); directrix y = 7 vertex (4, –3); focus (4, –7); directrix y = 1 vertex (–4, 3); focus (–4, 2); directrix y = 4

Find the solution set of this inequality. enter your answer in interval notation using grouping symbols. |8x-4| ≤ 12

An optical inspection system is used to distinguish among different part types. the probability of a correct classification of any part is 0.92. suppose that three parts are inspected and that the classifications are independent. let the random variable x denote the number of parts that are correctly classified. determine the probability mass function of x. round your answers to four decimal places (e.g. 98.7654). x f(x) 0 1 2 3

Asequence is defined recursively using the formula f(n + 1) =f(n) - 5. which sequence could be