Step-by-step explanation:
let H and F be the sets of students who like hockey and football respectively.
here,
- total number of students n(U)=99
- n(H)=46
- n(F)=42
- n(H n F)=17
then,
n(H U F)=n(H) + n(F) - n(H n F)
=46+42-17
=88-17
=71
now,
n(H U F)' = n(U) - n(H U F)
=99-71
=28..
Therefore, the number of students who don't play both games are 28.
I hope this will be helpful for you....
Answer:
don't know is is mathematics or any other subject
Just expand each number after the decimal. 0.300+0.030+0.004
Answer:
A series is used only for n taking the values of natural numbers
But a function or an equation is used for all real values of x. It is not necessary that x should be a natural number.
Step-by-step explanation:
The equation is used when domain is all real values
f(x) = 3x+5 is valid for all x real. x can take values as irrational also, negative or fractions.
But in a series, such as 2+3n, we have the restriction for domain n as only the set of all natural numbers
Here n cannot take negative or 0 or fractions or irrational numbers.
Thus the domain is the one which makes the difference of using an equation and a series.
A series is used only for n taking the values of natural numbers
But a function or an equation is used for all real values of x. It is not necessary that x should be a natural number.
