Which expression shows the difference when subtracting these 2 polynomials? (5x – 9x +11)-(-2x2+ 3x – 2)

a 7x2-12x+13

b 3x2+8x+9

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

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?

Which of the following is an equation of a line parallel to the equation y=4x+1?