Estimated is ; A ≈ 166.28
Because you must use the area of a hexagon to find the answer
You're welcome:)
Answer:
The solution is: 
Step-by-step explanation:
The Gauss-Jordan elimination method is done by transforming the system's augmented matrix into reduced row-echelon form by means of row operations.
We have the following system:



This system has the following augmented matrix:
To make the reductions easier, i am going to swap the first two lines. So

Now the matrix is:
![\left[\begin{array}{ccc}1&-2&1|-3\\2&-1&3|-10\\1&-5&2| -7\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D1%26-2%261%7C-3%5C%5C2%26-1%263%7C-10%5C%5C1%26-5%262%7C%20-7%5Cend%7Barray%7D%5Cright%5D)
Now we reduce the first row, doing the following operations


So, the matrix is:
![\left[\begin{array}{ccc}1&-2&1|-3\\0&3&1|-4\\0&-3&1| -4\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D1%26-2%261%7C-3%5C%5C0%263%261%7C-4%5C%5C0%26-3%261%7C%20-4%5Cend%7Barray%7D%5Cright%5D)
Now we divide L2 by 3

So we have
![\left[\begin{array}{ccc}1&-2&1|-3\\0&1&\frac{1}{3}|\frac{-4}{3}\\0&-3&1| -4\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D1%26-2%261%7C-3%5C%5C0%261%26%5Cfrac%7B1%7D%7B3%7D%7C%5Cfrac%7B-4%7D%7B3%7D%5C%5C0%26-3%261%7C%20-4%5Cend%7Barray%7D%5Cright%5D)
Now we have:

So, now we have our row reduced matrix:
![\left[\begin{array}{ccc}1&-2&1|-3\\0&1&\frac{1}{3}|\frac{-4}{3}\\0&0&2| -8\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D1%26-2%261%7C-3%5C%5C0%261%26%5Cfrac%7B1%7D%7B3%7D%7C%5Cfrac%7B-4%7D%7B3%7D%5C%5C0%260%262%7C%20-8%5Cend%7Barray%7D%5Cright%5D)
We start from the bottom line, where we have:



At second line:



At the first line



The solution is: 
The rule for side lengths of a triangle is that the two lowest lengths sum has to be greater than the longest length. so
a+b>c
For the 1st question
4+3>6
7>6
So yeah, it can be a triangle
For the 2nd one
1+3>4
4>4
So no, it can't be a triangle
Sandy has two possibilities
lengths of 3,3,4
or
lengths of 4,4,3
Answer:
The graph of g(x) is translated 4 units down compared to f(x)
Step-by-step explanation:
the -4 in
means it is translated 4 units down
Subtract 12 from both sides
4(2x + 2) > 100 - 12
Simplify 100 - 12 to 88
4(2x + 2) > 88
Divide both sides by 4
2x + 2 > 88/4
Simplify 88/4 to 22
2x + 2 > 22
Subtract 2 from both sides
2x > 22 - 2
Simplify 22 - 2 to 20
2x > 20
Divide both sides by 2
x > 20/2
Simplify 20/2 to 10
<u>x > 10</u>