Answer: Rotations, reflections, translations (A, C, and E)
Imagine you had a camera aimed at a triangular figure on a piece of paper. If you rotate the camera, then the image of the triangle appears to rotate. In reality it's the other way around. What this means is that the triangle is not changing at all. It keeps the same size, shape, area, perimeter, etc. This applies to when the camera pans left or right, ie shifts from side to side. The triangle will translate but again the triangle isn't changing at all. It's merely an illusion. Reflections are the same way. Imagine having a piece of glass or a mirror that reflects the image which is an identical copy; although everything is flipped.
Dilations are not isometries because the image is a different size then the pre-image. The same shape is maintained though. Note: the scale factor must be some number other than 1.
another note: "isometry" breaks down into "iso+metry" with "iso" meaning "same" or "equal", and "metry" meaning "measure". So if you had 2 identical yard sticks, then they are isometrical or equal in length.
3+9= 12 12x7=84 84-21=63
so it is 21+63
A. 25% or 3/12 B. 25% or 3/12 C. 28% D. 20%
or A. 20% B.10% C.28% D.20% pretty sure first for i listed is correct
X = 64% of 120
= 64/100 * 120
= (64 * 120) / 100
= 7680 / 100
= 76.8
The number is 76.8
Like terms have the same variable and power. The sum of the two polynomials 
is 
.
<h3>What are Like terms?</h3>
Like terms are those terms that are having the same variables, also the variables are of the same order as well.
for example, 25x and 5x are like terms; 30xy and 7xy are like terms, 9x³ and 4x² are not like terms, etc.
We know that in order to find the sum of the two polynomials we need to add or subtract the like terms, therefore, the sum of the polynomials can be done as,
Hence, the sum of the two polynomials is .
Learn more about Like Terms:
brainly.com/question/2513478
