Answer: 
Step-by-step explanation:

if it matters then simply further...
4 + \sqrt{4i} = 
Answer:
5
Step-by-step explanation:
Answer:
20
Step-by-step explanation:
Answer:
28 
Step-by-step explanation:
21/2 * 8/3 = 28
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.