You can focus on the two sub-triangles ABC and ACD
We know that they are both right triangles, because we're given that AC and BD are perpendicular.
The sides AB and AD are the hypothenuses of these triangles, so we know their length through the pythagorean theorem:
But since we're given 
, the expressions for AD and AB are actually the same expression. This proves that AD=AB, and thus that the triangle is isosceles.
So we know 5ft to 1cm then
4x5=20ft
6x5=30ft
Answer:
2x+4
Step-by-step explanation:
Answer:
In order to go from the first point to the second, we need to rise from 4 to 7, i.e. by 3. We also need to run from -4 to -2, i.e. by 2. Therefore the slope is 32 .
Step-by-step explanation:
Answer:
The equation is 1.96- 0.75
The answer is 1.21
Step-by-step explanation:
Hope this helps :)
