Answer:
7
Step-by-step explanation:
Reflection is a rigid transformation, so the side length does not change.
A'B' = 7
Answer:
b
Step-by-step explanation:
did this before
It’s should be letter A for it
275x5=1375
This means that the helicopter has dropped 1375ft closer to the ground, then when it was at x altitude
Answer:
AB=16
BC=15
AC=12
PQ=12
QR=12
PR=19
Step-by-step explanation:
well you know that the perimeter is the sum of all sides
so we have
![(2x)+(2x+4)+(2x+3)=(2x)+(2x)+(3x+1)\\\\2x+2x+4+2x+3=2x+2x+3x+1\\\\(2x+2x+2x)+(4+3)=(2x+2x+3x)+(1)\\\\6x+7=7x+1\\\\6x+7-1=7x\\\\6x+6=7x\\\\6=7x-6x\\\\x=6](https://tex.z-dn.net/?f=%282x%29%2B%282x%2B4%29%2B%282x%2B3%29%3D%282x%29%2B%282x%29%2B%283x%2B1%29%5C%5C%5C%5C2x%2B2x%2B4%2B2x%2B3%3D2x%2B2x%2B3x%2B1%5C%5C%5C%5C%282x%2B2x%2B2x%29%2B%284%2B3%29%3D%282x%2B2x%2B3x%29%2B%281%29%5C%5C%5C%5C6x%2B7%3D7x%2B1%5C%5C%5C%5C6x%2B7-1%3D7x%5C%5C%5C%5C6x%2B6%3D7x%5C%5C%5C%5C6%3D7x-6x%5C%5C%5C%5Cx%3D6)
so the sides are:
![AB=2x+4=2(6)+4=12+4=16\\\\AB=16](https://tex.z-dn.net/?f=AB%3D2x%2B4%3D2%286%29%2B4%3D12%2B4%3D16%5C%5C%5C%5CAB%3D16)
![BC=2x+3=2x+4-1=16-1=15\\\\BC=15](https://tex.z-dn.net/?f=BC%3D2x%2B3%3D2x%2B4-1%3D16-1%3D15%5C%5C%5C%5CBC%3D15)
![AC=2x=2(6)=12\\\\AC=12](https://tex.z-dn.net/?f=AC%3D2x%3D2%286%29%3D12%5C%5C%5C%5CAC%3D12)
![PQ=2x=12\\\\PQ=12](https://tex.z-dn.net/?f=PQ%3D2x%3D12%5C%5C%5C%5CPQ%3D12)
![QR=2x=12\\\\QR=12](https://tex.z-dn.net/?f=QR%3D2x%3D12%5C%5C%5C%5CQR%3D12)
![PR=3x+1=3(6)+1=18+1=19\\\\PR=19](https://tex.z-dn.net/?f=PR%3D3x%2B1%3D3%286%29%2B1%3D18%2B1%3D19%5C%5C%5C%5CPR%3D19)
So there you are.