When simplifying the expression 24i- 12+36i, which step below applies the commutative property of addition? A: (24i - 12) + 36i
B: 24i + 36i- 12
C: 24i + (-12 + 36i)
D: 12(2i - 1 +3i)

15. Use the associative property of addition to simplify 5.2 - (4.1 - 42i).

A: 9.3 + 42i
B: 1.1 +421
C: 1.1 - 42i
D: 9.3 - 42i

A C are the awnsers

for the friend request.

when a figure, such as triangle (xyz) is reflected over the line y = x to create x'y'z' the x-coordinates and y-coordinates of the original image (pre-image) will be reversed for the image. (e.g., (x, y) > (y, x)) this means that the pre-image position of the x- and y-coordinates switch places which in turn provides a mirror like image of the original xyz.  

i notice that when i draw a line segment from x to x', that the points are parallel from each other -- they are exactly across from each other and do not intersect with any other points.  

yes, think i would see the same characteristic if you drew the line segment connecting y with the reflecting line and then y' with the reflecting line because of the essence of reflections. because it is a mirror image, each point was effected the same way which leads me to conclude that they same would apply to y and y'.

there is no graph so i cant sorry

step-by-step explanation: