What is the equation of the quadratic graph with a focus of (2, 0) and a directrix of y = −12? A) f(x) = one twenty fourth x squared minus one sixth x minus thirty five sixths
B) f(x) = x2 − 4x − 35
C) f(x) = negative one twenty fourth x squared plus one sixth x minus thirty five sixths
D) f(x) = −x2 + 4x + 35

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

In which form is the following function written? y = - 2(x – 3)(x + 5)

When you have 25 numbers, and jake picks 3 random numbers and puts them back, what is the chance bob has of picking those 3 numbers when he picks 6 random numbers (without putting them back)? explain.