Answer:8.6
Step-by-step explanation:
Answer:
Actually the answer is "A"
this is a very strange way to present a problem...
this issue her is that 
so you need 1/3 * 3 in the answer... none of them have 1/3 * 3
BUT !!!!! 1/3 + 1/3 + 1/3 is the same as 1/3 * 3 So "A" is the solution
Step-by-step explanation:
Answer:

Step-by-step explanation:
By definition:
The pre-meter P of a triangle ABC is equal to the sum of the length of its sides.
We know that:

The perimeter is:

Now we find the length of the sides:

Once the length of the sides is known, we use Heron's formula to calculate the area.
First I find the semiperimeter S.

Then the Area is:

Answer:
Both give - 6=5x
Step-by-step explanation:
First equation 2x-6=7x
When you solve it, it becomes :
2x-6=7x
Subtract 2x both sides
2x-2x-6=7x-2x=
-6=5x
2)5x-6=10
5x-5x-6=10x-5x
-6=5x
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