The standard form of the equation of the parabola with a focus at (0, -3) and a directrix at y = 3.

The Standard form of the equation of the Parabola using Focus F(0,-a) and the directrix y=a is given by

To Find the standard form of the equation of the parabola with a focus at (0, -3) and a directrix at y = 3:

Here a=3, Plug in a=3 in

Thus we get

which is the standard form of the equation of the parabola.

x= 149. 24+7=31. 180-31=149

your welcome

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0