Ineed a the answer ! geometry is hard

36

Step-by-step explanation:

Triangle FED and Triangle AEC are similar.

That means, the ratio of corresponding sides are equal. Thus we can say:

Also, since EC is 39 and D is the midpoint, ED and DC are half of that. Hence ED = 39/2 = 19.5

Now we can use the ratio to solve for AC:

Hence, AC = 36

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: