10 × 30 = 300
(20 characters thing)
Number of Neutrons = Atomic mass - Atomic number
= 16 - 7 = 9
In short, Your Answer would be 9
Hope this helps!
9514 1404 393
Answer:
g(x) = -√(x -2) -1
Step-by-step explanation:
We note the domain of f(x) is x ≤ -1. The is the range of the function g(x).
The inverse function is the solution to ...
x = f(y)
x = (y +1)² +2
x -2 = (y +1)²
-√(x -2) = y +1 . . . . . . . we are interested only in the negative values
y = -√(x -2) -1
The inverse function is ...
g(x) = -√(x -2) -1
Let 
be the volume of 20% solution, 
the volume of the 60% solution. We want a total volume of 400 mL in the final mixture, so
Each mL of either solution will contribute a corresponding concentration, and in the final mixture we want the 400 mL to have a 40% concentration, which means we should also have
Solve the system and we get 
.
Answer:
ok so x=11
Step-by-step explanation:
