I need help with this for my little brother

Me ! write an equation for the interior angles of this triangle that uses the triangle sum theorem

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

Pls never taught i’m really confused and i rlly need