A certain parking lot has three entrances. 40% of drivers use entrance 1 (A1), 35% use entrance 2 (A2), and 25% use entrance 3 (A3). Of those drivers using entrance 1, 30% park for more than two hours (event B). Of those drivers using entrance 2, 60% park for more than two hours, whereas of those using entrance 3, 50% park for more than two hours. What is the correct probability notation to represent 40%

if a = 1,   and b = 2, then the answer is 47.99999999. if you round that to the nearest whole number, the answer is 48.

-2x + 7 = 7

subtract 7 from both sides.

-2x = 0

divide both sides by -2.

x = 0

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.