Answer:
C. -2x+y=1
Step-by-step explanation:
If we move 2x to the other side of the equation, its sign will change from positive to negative.
Perimeter is all the sides added up so 20+20+10=50 the 50+10=60 so 10 is your answer
Answer:
The scale factor of the sides of the Octagon is 2:5
Step-by-step explanation:
Both these octagons can be considered as the combination of 8 similar triangles joined edge to edge.
We know this property of similar triangles, that the ratio of area of similar triangles is proportion to the square of the ratio of sides of the similar triangle.

From the above property, we plug in the values


Therefore, the ratio of the sides of the Octagon are 2:5.
Your awnser is B my good sir
Answer:
6
Step-by-step explanation:
The small triangle has a height of h and a base of 4
The large triangle has a height of 3 and a base of (2+4) = 6
The ratios is
3 h
---- = -------
6 4
The question mark is 6