An oil company fills 1/2 of a tank in 1/3 hour. At this rate, which expression can be used to determine how long it will take for the tank to fill completely?

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8

given : the shape of his satellite can be modeled by   where x and y are modeled in inches.

now,the given equation   is a equation of parabola.

here, coefficient of x is positive, hence the parabola opens rightwards.

on comparing this equation with standard equation , we get

in standard equation, coordinates of focus=(0,m)

thus for given equation coordinates of focus=(0,1.5)

step-by-step explanation:

yes.. it's proven to be 36.