Answer:
n=2
Step-by-step explanation:
Create an equation.
9n=18
Divide 9 from both sides.
9n/9=18/9
n=2
Hope this helps!
Answer:
-4,-3 is 4 and 2,1 is 2
Step-by-step explanation:
Answer:
D_{f(x)} = [9, \infty)
Step-by-step explanation:
Here we have the square root of a function, in the following format:

For the square root, and roots of even numbers(root of 4, 6, ...), we have the following condition in the domain

In this problem, we have that:

So


So the domain is

Hello! To find the answer to this, we must add all of the first 5 numbers. When you do that, the sum should be 81. You must do 16 * 6 to find the number of points combined he needs to add up to the average. 16 * 6 = 96. 96 - 81 = 15. On the 6th test, you must score 15 points to have an average of 16 points. The answer is 15.