Find the vertex, focus, directrix, and focal width of the parabola. (5 points)
negative 1 divided by 20 times x squared = y

something noteworthy is that the squared variable is the "x", thus the parabola is a vertical one, the "p" value is negative, so is opening downwards, and the h,k is pretty much the origin,

vertex is at (0,0)

the focus point is "p" or 5 units down from there, namely at (0, -5)

the directrix is "p" units on the opposite direction, up, namely at y = 5

the focal width, well, |4p| is pretty much the focal width, in this  case, is simply yeap, you guessed it, 20.

180

step-by-step explanation:

12-2=10

20-2=18

18x10=180

answer: procent 54 wynosi 33,33%