Which ratio best defines relative frequency
number of nonfavorable outcomes numbers of possible outcomes
numbers of possible outcomes numbers of nonflavorable outcome
total number of time an experiment is performed numbers of times an events occurs
number of times an event occurs total number an experiment is performed

Find the zero function by factoring (try to show work) h(x)=-x^2-6x-9

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

Lucy is a dress maker. she sews \dfrac47 7 4 of a dress in \dfrac34 4 3 hour. lucy sews at a constant rate. at this rate, how many dresses does lucy sew in one hour? include fractions of dresses if applicable