What are the factors of the polynomial below? x2 + 7x - 18 a. (7x + 11)(x - 1) b. (x + 2)(9x - 2) c. (x + 9)(x - 2) d. (7x + 9)(x - 2)

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

The lengths of all sides of a triangle are integers when measured in decimeters. one of the sides has length of 1 dm and another of 3 dm. find the perimeter of the triangle.'

What is the volume of a cone with a height of 6 cm in the radius of 2 cm