2(3+ ‐ 4)(7‐3)÷(2‐ ‐2)​

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

Points a, b, and c form a triangle. complete the statements to prove that the sum of the interior angles of triangle abc is 180

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