Answer: A
Step-by-step explanation:
Answer:
1.75
Step-by-step explanation:
If a and b are two numbers, then their arithmetic mean is

Given:

Divide this equation by 10:

Now, divide it by 2:

Answer: -8,6
Step-by-step explanation:
Answer: 80 feet.
Step-by-step explanation:
1. As you can see in the figure, triangle ABC and the triangle DFG are similar.
2. The scale of factor of triangle ABC to triangle DFG is the following:

3. Therefore, the lenght of the side DG of the trinagle DFG is:

4. The perimeter of the triangle DFG is:

5. Therefore, she would need 80 feet of fence.
Answer:
X=3
Step-by-step explanation: