What is the slope of the line that passes through the points (8, 7) and (4, 5) write in simplest form

What is sin 7x/4 ? i need on this urgent trig

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

Does the point (1, sqrt 7) lie on circle shown.