Answer:
Step-by-step explanation:
We know that the coordinates of a point A(x,y) after the reflection across y-axis becomes :-
i.e. the polarity of x-coordinate changes but the y-coordinate remains exactly same.
Now, point U(2, -2) undergoes reflection across y-axis , then its image will be :-
Thus , we get the coordinates of U' =(-2,-2)
it depends in how many marbles there were in total add more details and then I'll give more help
6/sqrt(8)= 2.121320344
50.27
v=3.14 (2 squared) 4