Given the system of the following two linear equations: Equation 1: 12x - 2y= -1

Equation 2: 4x + 6y= -4

What would be the first step in eliminating the variable y?

A. Add the 2 equations

B. Multiply the second equation by 4

C. Multiply the first equation by 3

D. Subtract the 2 equations

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