Adiver dives from a 9-foot-high platform with an initial speed of 16 feet per second. the height, h, of the diver can be modeled by the equation ℎ = −16^2 − 16 + 9, where t represents time in seconds. how long will it be before the diver hits the water?

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

X+ y = 5 ; x - y =3 solve using linear combination

Janet is rolling a number cube with the numbers one through six she record the numbers after each row if she rolls of keep 48 times how many times should she expect to roll a 4