<h2>Hello!</h2>
The answer is:
The domain of the function is all the real numbers except the number 13:
Domain: (-∞,13)∪(13,∞)
<h2>Why?</h2>
This is a composite function problem. To solve it, we need to remember how to composite a function. Composing a function consists of evaluating a function into another function.
Composite function is equal to:

So, the given functions are:

Then, composing the functions, we have:

Therefore, we must remember that the domain are all those possible inputs where the function can exists, most of the functions can exists along the real numbers with no rectrictions, however, for this case, there is a restriction that must be applied to the resultant composite function.
If we evaluate "x" equal to 13, the denominator will tend to 0, and create an indetermination since there is no result in the real numbers for a real number divided by 0.
So, the domain of the function is all the real numbers except the number 13:
Domain: (-∞,13)∪(13,∞)
Have a nice day!
7/8 is the answer hope this helps
Answer:
The debris will be at a height of 56 ft when time is <u>0.5 s and 7 s.</u>
Step-by-step explanation:
Given:
Initial speed of debris is, 
The height 'h' of the debris above the ground is given as:

As per question,
. Therefore,

Rewriting the above equation into a standard quadratic equation and solving for 't', we get:

Using quadratic formula to solve for 't', we get:

Therefore, the debris will reach a height of 56 ft twice.
When time
during the upward journey, the debris is at height of 56 ft.
Again after reaching maximum height, the debris falls back and at
, the height is 56 ft.
5x+5=3
5x=-2
X=-2/5
Alternative form is x=-0.4
X>43/3
Or X>29/3
Depending if you mean (7-2)/3 or 7-(2/3)