What are the solutions to the quadratic equation ?

A
{1, 32}\left\{1,\ \frac{3}{2}\right\}{1,
2
3
​
}

B
{−1, −32}\left\{-1,\ -\frac{3}{2}\right\}{−1, −
2
3
​
}

C
{1, −32}\left\{1,\ -\frac{3}{2}\right\}{1, −
2
3
​
}

D
{−1, 32}\left\{-1,\ \frac{3}{2}\right\}{−1,
2
3
​
}

An equation where variables are used to represent known values—function notation true or false

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 triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.