9. The population of an Island community is modeled by the mathematical equation
* + , where is the time in years since
records began.
(i) What is the population at the beginning of the recording?(0.3 Marks)
(iii) Find the decrease in population over the first ten years (0.3 Marks)
(ii) Find by differentiation the smallest population predicted by the model

step-by-step explanation:

5×5×5+2(8)÷2(2)+3(3)

15+16÷4+9

31÷13

do 31÷13 and u will get ur 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.

21

jk it's 20

step-by-step explanation: