The tree diagram below shows all of the outcomes for flipping 3 coins.
1st coin
2nd coin
3rd coin
Outcomes
I
1
- (H, H,H)
H
--
X
I
I
TTI TITI
(H, T,H)
(H, T,T)
(T, H,H)
- (THT)
--- (TTH)
(T,1,T)
1
Which outcome is represented by x?

i got 142 as my answer

step-by-step explanation:

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

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.