Which of the following equations represents a parabola that opens up and
has a vertex at (2, 3)?

Solve the equation 3x2 + 19x + 9 = 0 to the nearest tenth.

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

In the diagram below? p is circumscribed about quadrilateral abcd. what is the value of x