Out of a total of N students at a school, the number of students who have seen a new television program increases at a rate proportional to the product of the number of students who have seen the program and the number of students who have not seen the program. If S denotes the number of students who have seen the program at time tt, which of the following differential equations could be used to model this situation, where k is a positive constant

Step-By-Step Explanation:

The given options are:

Let the total Number of students be N.

Let the number who have seen the program = S

Therefore, the number of those who have not seen the program = N-S

Product of the number of students who have seen the program and the number of students who have not seen the program=S(N-S)

Since the number of students who have seen the new television program increases at a rate proportional to the product of the number of students who have seen the program and the number of students who have not seen the program.

Therefore:

(where k is a positive constant) is the differential equations which could be used to model this situation.

i think it's ф or x=6,-6

step-by-step explanation:

-x^2=-36

x^2=-36

ф

or

if you mean by : -(x^2)=-36

it'll be: x^2=36

x=6,x=-6

hope it'll ! have a good day!

you for asking!

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.