What is the value of 3 in the system of equations below? 3x + y - z=5
2x -y-z= -3
2 + y +z = 9

X-intercept=-5 y-intercept=2 the equation of the line is

Haley buys 9 pounds of apples for $3. how many pounds of apples can she buy for $1?

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