Congratulations on completing the set! Now let's do a post-test problem to see what you've learned. Please answer the question below. The table below shows the number of boys and girls in Ms. Jones' 7th grade class.

Ms. Jones' 7th grade class

Number of students
Girls 10
Boys 15
What percent of the total students in the class are girls?

c

step-by-step explanation:

angle addition postulate

2x=56

step-by-step explanation:

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'.