A car travels at a rate of 50 miles per hour for 3 hours. Let y be the distance, in miles, the car travels for a given amount of time, x, in hours. This situation can be modeled by a function. What is the domain of the function?

A.
0 ≤ x ≤ 3

B.
0 ≤ x ≤ 50

C.
0 ≤ y ≤ 3

D.
0 ≤ y ≤ 50

What is the inverse of the function f(x) = 2x + 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

Which expression is not a polynomial?