Lisa needed 1 cup of white sugar to 2 cups of brown sugar to make one batch of cookies.What would be the ratio of white sugar to
1 answer:
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Answer:
Step-by-step explanation:
(a). 270° clockwise or 90° counterclockwise:
(x, y) --------> ( - y, x )
(b). 270° counterclockwise or 90° clockwise:
(x, y) ---------> ( y, - x )
