Answer:

Step-by-step explanation:
cos O = adjacent / hypotenuse
cos O = 12/13
I hope I helped you^_^
3x+2=x+8
Slandered Form
2x-6=0
Factorizations
2(x-3)=0
Solutions
x=6/2=3 (6 divided by 2 = 3)
Answer:
13
Step-by-step explanation:
The range of a data set is the difference between the greatest and least values in the set. In this case, the greatest value is 15 and the least value is 2 so the range is 15 - 2 = 13.
Answer:
D. (x, y) → (-x, -y)
Step-by-step explanation:
A. (x,y) → (y,x) . . . . reflects across the line y=x
B. (x,y) → (y,-x) . . . . rotates 90° CCW
C. (x,y) → (-y,-x) . . . . reflects across the line y=-x
D. (x,y) → (-x,-y) . . . . rotates 180° about the origin