Answer:
B
Step-by-step explanation:
Reflection is a transformation that preserves lengths.
Triangle XYZ, with side lengths XY = 7 in, YZ = 5 in, XZ = 4 in, is reflected across the x-axis to result in △X'Y'Z'.
This means that corresponding sides have the same lengths:
- XY = X'Y' = 7 in;
- XZ = X'Z' = 4 in;
- YZ = Y'Z' = 5 in.
Find the perimeters of both triangles:
![P_{XYZ}=XY+XZ+YZ=7+4+5=16\ in\\ \\P_{X'Y'Z'}=X'Y'+X'Z'+Y'Z'=7+4+5=16\ in](https://tex.z-dn.net/?f=P_%7BXYZ%7D%3DXY%2BXZ%2BYZ%3D7%2B4%2B5%3D16%5C%20in%5C%5C%20%5C%5CP_%7BX%27Y%27Z%27%7D%3DX%27Y%27%2BX%27Z%27%2BY%27Z%27%3D7%2B4%2B5%3D16%5C%20in)
Hence, only option B is true.
D=10
Explanations: 2d-5=3d- 15
2d- 3d =-15+5
D=10
The answer is 5 13/15 or atleast according to calculator.net (the website used in the picture) :)
Answer:
The correct answer is D
Step-by-step explanation:
-20 is your y-intercept and your graph will be increasing