Answer:

Step-by-step explanation:
I am assuming that you are asking what is [x] - 5 if f(86).
When you have this kind of question, what you do is to substitute the variable inside the parenthesis, so like what is says, f(x). If the question replaces the variable x with 86, that means you input the number into the equation.
So [x] - 5, if f(86).
Substitute:
86 - 5

Alex and her friend were trying to find who had more pieces of candy. Her friend had 20. Alex had x but lost 13 of them. They found out that Alex had more.
So, x-13>20
Answer:
See below.
Step-by-step explanation:
"Part A:
(1,5.5)
(2,5)
(3,4.5)
(4,4)
(5,3.5)
(6,3)
Every hour (x value) I subtracted 0.5 from the candle height (y value) since it burns at 0.5 inches per hour.
Part B:
Yes, this is a function because there is a constant relationship between the input and the output.
Part C:
Yes, this will continue to be a function because there is still a constant relationship, even though its different than the first one.
(1,5.7)
(2,5.4)
(3,5.1) ect."
Answer is also here:
brainly.com/question/2872549?referrer=searchResults
-hope it helps
Answer:
4 is the length
Step-by-step explanation:
14 and 4
14 x 14 + 4 x 4 = 212
14 + 4 = 18