Aclassroom contains 14 students. a student committee of 3 (president, vice-president, and treasurer) must be selected. harry potter will serve only as president and only if either of his friends ron weasley or hermione granger serve as vice president; otherwise he leaves the group. the others (including ron and hermione) have no such restrictions. what is the probability that ron or hermione become the president of this group? report answer to 3 decimal places.

the image of (6, 9) under a dilation is (4, 6). the scale factor is

im here

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'.