Answer: 8 feet.
Step-by-step explanation:
To solve this problem you must apply the proccedure shown below:
1. First, you can draw the diagram shown in the image attached.
3. Now, you must use proportions and solve for [tex]x[/tex], which is the height of the tree:
[tex]\frac{x}{9}=\frac{4}{4.5}\\x=\frac{(4)(9)}{4.5}\\x=\frac{36}{4.5}\\x=8[/tex]
4. As you can see, the height of the tree is 8 feet.
