Answer:
3x
Step-by-step explanation:
5x - 3x + 2x - x
2x + 2x - x
4x - x
3x
Hope this helps!
<h3><em>Answer </em><em>:</em></h3>
- A rhombus has side lengths of 25. What could be the lengths of the diagonals? From 0 to (25+25) = 50 units, exclusive.
# XxQueenJiAexX
Answer:
Step-by-step explanation:
Ax+By=C (remember this formula)
-2/9x+2=y (switched sides to make it easier)
-2x/9+2-y=0 ( put y on the other side)
-2x/9-y=-2 ( put 2 on the other side)
So a must be positive so multiply by -1
2x/9+y=2
answer
2x+9y=18 (LCM)
Answer:
<h2>The perimeter of the cross section is 30 centimeters.</h2>
Step-by-step explanation:
In this problem we have the intersection of a rectangular prism an a plane.
The dimensions of the rectangular plane are
![l=12cm\\w=6cm\\h=9cm](https://tex.z-dn.net/?f=l%3D12cm%5C%5Cw%3D6cm%5C%5Ch%3D9cm)
Assuming the plane is cutting the prism horizontally, the cross section would have dimensions
![w=6cm\\l=9cm](https://tex.z-dn.net/?f=w%3D6cm%5C%5Cl%3D9cm)
Because only the height would be cut.
So, the perimeter of the rectangle cross-section is
![P_{cross}=2(l+w)=2(6+9)=2(15)=30cm](https://tex.z-dn.net/?f=P_%7Bcross%7D%3D2%28l%2Bw%29%3D2%286%2B9%29%3D2%2815%29%3D30cm)
Therefore, the perimeter of the cross section is 30 centimeters.