ANSWER:
The surface area of the star is 3.2700 x 
square kilometres.
EXPLANATIONS:
Diameter of the star = 1.8083 x 
Km.
Surface area of the star = 4
Where n is the radius of the star.
So that;
n = 
= 0.90415 x
n = 0.90415 x Km
Thus,
Surface area = 4 x 
= 326994889
Surface area = 3.2700 x 
Therefore, the surface area of the star is 3.2700 x square kilometres.
Looks like 14.4 because you have to add them all together and divide by the total numbers
(20+22+10+5+15)/ 5
Answer:
The inverse of f(x) is 
Step-by-step explanation:
To find the inverse of the function 
, perform the following steps:
1) do 
2) Solve the equation for the variable x.
3) exchange the variable x with the variable y
----> 
4) Change the variable y by 
Finally the inverse function is:
Answer:
4.67
Step-by-step explanation:
calculator says so
Answer:
6
Step-by-step explanation:
(x + 9) * (x - 2) = 60
x^2 - 2x + 9x - 18 = 60
x^2 + 7x - 18 = 60
x^2 + 7x = 78
FACTORING:
x(x + 7) = 78
x = 6
