7.) Complete the proof. Given: BC = 5: AB = 3.r
Prove: AB = 6
A
3x
B 2x +1 C
Statements
Reasons
A. BC = 5
A.
?
B. 2x + 1 = 5
B. Substitution Property
C. 2x = 4
C.
?
D. X = 2
D
?
E. AB = 3x
E. Given
F. AB = 3(2)
F.
?
G. AB = 6
G. Simplify

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'.

  or  

step-by-step explanation:

if the four friends split the cost, p, of the pizza evenly, then each friend pays one-fourth of the cost of the pizza.

the expression is   or