Which graph could represent a constant balance in a bank account over time?
daily balance
daily balance
daily balance
daily balance
balance (dollars)
balance (dollars)
balance (dolars)
balance (dolars)
öä 8
2
6
7
8
1
2
6
3 4 5
time days)
7
8
2
6
7
3 4 5
time (days)
8
3 4 5
time (days)
me days)

What is the value of x in the diagram below?

What is the value of x? enter your answer in the box. x = two intersecting tangents that form an angle of x degrees and an angle of 134 degrees.

Four airplanes carrying a total of 400 passengersarrive at the detroit airport. the airplanes carry, respectively,50, 80, 110, and 160 passengers. a) one of the 400 passengers is selected uniformly at random. let x denote the number of passengers that were on theairplane carrying the randomly selected passenger. find var(x)for x as given in the problemb) one of the 4 airplane drivers is also selected uniformly atrandom. let y denote the number of passengers on the chosen driver’s airplane. find var(y) for y as given in the problem