69.5 percent of 85 is 59.075
Answer:
Inequality Form:
b ≥ 1
Interval Notation:
[1,∞)
Step-by-step explanation:
The given sequence is:
![a(n)= \frac{1}{3} (3)^{n-1}](https://tex.z-dn.net/?f=a%28n%29%3D%20%5Cfrac%7B1%7D%7B3%7D%20%20%283%29%5E%7Bn-1%7D%20)
a(2)=1
a(3)=3
a(4)=9
We are to find the average rate of change between n=3 and n=4 for the given function.
Average rate of change =
![\frac{a(4)-a(3)}{4-3} = \frac{9-3}{1}=6](https://tex.z-dn.net/?f=%20%5Cfrac%7Ba%284%29-a%283%29%7D%7B4-3%7D%20%3D%20%5Cfrac%7B9-3%7D%7B1%7D%3D6%20%20)
So the average rate of change for the given function from n = 3 to n = 4 is 6
The answer is obviously not A and B so that leaves us with only C or D and the one that id the best choice would have to be C because it gives good information about how it is used and where it would be installed
Hope this helped : )
That rounded to the nearest thousand would be 1,317.000