Which function has a vertex on the y axis? A. f(x) = (x-2)^2 B. f(x) = x(x+2) C. f(x) = (x-2)(x+2) D. f(x) = (x+1)(x-2)

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

Awater truck is filling a swimming pool. the equation that represents this relationship is y=19.75x where y is the number of gallons of water in the pool and x is the number of minutes the truck has been filling the pool.

Is a square always, sometimes, or never a parallelogram