An ellipse is represented by the b -=

1

225

Each directrix of this ellipse is a

from the center on the major axis.

horizontal line that is 20 units

vertical line that is 20 units

horizontal line that is 31.25 units

vertical line that is 31.25 units

the correct answer is a.) bc< mn 5 stars if this you : )

step-by-step explanation:

the answer is: d) o, f, and kr.

atomic radius of bromine (br) is 114 pm.

atomic radius of oxygen (o) is 73 pm.

atomic radius of fluorine (f) is 72 pm.

atomic radius of krypron (kr) is 112 pm.

the atomic radius of a chemical element is a measure of the size of its atom.

the atomic radius varies with increasing atomic number, but usually increases because of increasing of number of electrons.

the atomic radius decreases across the periods because an increasing number of protons, because greater attraction between the protons and electrons.

i believe that the answer is

b. y-1=-2(x-4)

hope this !

step-by-step explanation:

for exempl this   system of equations   y = x - 3

                                                                y = 2x - 5

look   the line : y = x -3     ( red)

                            the line : y = 2x -5 ( bleus)