Answer My best guess is D
Step-by-step explanation:
Answer:
Hi, There!
Part A: tell me the Characteristics of a Reflection
There are several important characteristics of a reflection:
- A reflection maps a line to a line, a ray to a ray, a segment to a segment, and an angle to an angle. Each piece of the original pre-image is exactly the same in the image.
- A reflection preserves lengths of segments. The length of a line segment will be the same in a reflection.
- A reflection preserves degrees of angles. The angles of the image are congruent to the angles in the pre-image.
Part B:
Rigid transformation: Moving a figure so that it is in a new location but has the same size, shape, and area. A mathematical reflection is a type of rigid transformation
Part C:
what is Line of reflection: The line over which a pre-image is reflected to create a new image
Any number divided by 1 is still that number (it stays the same).
So you can rewrite 280 as 280/1, which is a fraction.
With 280/1, you can also get an equivalent fraction by multiplying the numerator and denominator by a number, let's say 2.
So multiplying the numerator 280 by 2 would get 560, the denominator would be 2. So another equivalent fraction would be 560/2
Answer:
a = 12 b = -4
Step-by-step explanation:
To solve this equation it would be easiest to use the elimination method
a + b = 8
a - b = 4
a = 12
Now all we have to do is substitute 12 for a in any equation. For this I will use the first one.
12 + b = 8
Lastly subtract 12 from both sides
b = -4