The water level in a pool drops 4 1/4 inches. what rational number represents a drop of 4 1/4 inches?

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

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

Which is the focus of a parabola with equation y2=4x