ADP and ABQ are tangents to the circle, centre O. C lies on the circumference of the circle.
D
P
Giving reasons for all the
statements you make, work out
angles DCO, CBO, OCB, and BCD,
all in terms of x.
O
Hence, work out obtuse angle DOB
and prove that y = 2x.
2x
B
Not drawn accurately

Its due ! write an equation in which the quadratic expression 2x^2-2x 12 equals 0. show the expression in factored form and explain what your solutions mean for the equation. show your work.

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

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)