The area of the rectangle is 54 units squared. Write and solve an equation to find x.
1 answer:
Answer:
Step-by-step explanation:
The area of a rectangle can be found with the following formula:
Where "l" is the length and "w" is the width.
In this case you can identify in the figure given in the exercise that:
You know that the area of that rectangle is the following:
Therefore, knowing those values, you can substitute them into the formula and then you must solve for "x" in order to find its value. You get that this is:
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Answer:
The inner function is and the outer function is
.
The derivative of the function is .
Step-by-step explanation:
A composite function can be written as , where
and
are basic functions.
For the function .
The inner function is the part we evaluate first. Frequently, we can identify the correct expression because it will appear within a grouping symbol one or more times in our composed function.
Here, we have inside parentheses. So
is the inner function and the outer function is
.
The chain rule says:
It tells us how to differentiate composite functions.
The function is the composition,
, of
outside function:
inside function:
The derivative of this is computed as
The derivative of the function is .