Please help I dont get it​

Acircle has a radius of 5/6 units and is centered at (3.6, 7.8) write the equation of this circle

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

If g^-1(x) is the inverse of g (x) which statement must be true