The answer it 1. is A.
The answer to 2. is B.
25% 6 divided by 24 will give you the percentage of copper in the bar
-2 should be correct. It is an input for that given graph.
Answer:
K'(-3,-2) and A'(-2,5)
Step-by-step explanation:
180 degree rotation = (x,y)---(-x, -y)
hence, if k=(3,2)
then k' = (-3, -2)
90 degree rotation clockwise= (x,y)--(y,-x)
hence if, A=(-5 , -2)
then, A'= (-2, 5)
