Given:
A.)Consider
Also,
Since,
Therefore, both functions are inverses of each other.
B.
For the Composition function
Since, the function is not defined for
.
Therefore, the domain is
For the Composition function
Since, the function is not defined for
.
Therefore, the domain is
Given:
A bird was sitting 16 feet from the base of an oak tree and flew 20 feet to reach the top of the tree.
To find:
The length of the tree.
Solution:
A bird was sitting 16 feet from the base of an oak tree.
Vertical distance between bird and base = 16 feet
Then the bird flew 20 feet to reach the top of the tree.
Now, the vertical distance between bird and base = (16+20) feet
So, length of the oak tree is it the sum of 16 feet and 20 feet.
feet
feet
Therefore, the length of the oak tree is 36 feet.