Is 0.7777... (REPEATING) rational or irrational? (NEED AN ANSWER ASAP)

Which of these explains why:

A.)It is the square root of a non-perfect square

B.)It is a decimal that repeats

C.)It is a decimal that terminates

D.)It is the square root of a perfect square

E.) It is a decimal that does not repeat or terminate

B

Step-by-step explanation:

6, 10

9, -13

12, -21

18, -23

step-by-step explanation:

you just add 6 to the x-coordinate and subtract 10 from the y-coordinate.

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.