The number of people in a car that crosses a certain bridge is represented by the random variable x, which has a mean value μx = 2.7, and a variance σ2x = 1.2. the toll on the bridge is $3.00 per car plus $ .50 per person in the car. determine the mean and variance of the total amount of money that is collected from a car that crosses the bridge.

Pick the description of a geometric object that best matches the real world object box for a deck of card

Is each relation a function? if so, state whether it is one-to-one or many-to-one. 3. (-4,7), (-3,5), (1,4), (3,-8), (5,-11) 4. (-4,8), (-2,4), (0,1), (2,4), (4,8) 5. (-2, 1), (-2,3), (0,-3), (1,4), (3,1)

(least common multiples) the answer that i had in the 1st step was lcm of airline tickets sold=72. idk if that even matters but just in case. ! three co-workers are busy selling airline tickets over the phone. in an 8-hour day, charles can sell 8 airline tickets, ann can sell 9 airline tickets, and michelle can sell 6 airline tickets. step 2 of 2: what is the smallest number of 8-hour days needed for each of them to achieve the same number of sales? it takes charles . it takes . it takes .