Angle DEF has vertices at D (-2,0), E (-8,0), - and F (-2,7). After a dilation the vertices of Angle D'E'F' are at D' (-3,1), E' (-12,0, and F' (-3, 10.5). Fine the scale factor.

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.

4

step-by-step explanation:

im pretty sure it's 4 beacsue 8/2 equals 4

answer is c

step-by-step explanation:

81/12=324/x

x=48

the answer is "add 2y and y"

step-by-step explanation:

you need to collect the like terms first.