问题描述：
英语翻译
answer the whole of this question on a piece of graph paper.
the coordinates of the point A,B,C are (1,2),(2,2),(3,0)respectively.given that the triangle ABC is mapped onto triangle XYZ by means of an enlargement with center at origin an scale factor 2.then the triangle XYZis mapped onto triangle RST under a reflection in the line y=1.write down the coordinates of the points R,S,T.
还有一题看不懂:
express:(a)136.80kg correct to the nearest 10kg
(b)0.06280 in standard form,correct to 2 significant figures.
ans:(a)_____________
(b)_____________
answer the whole of this question on a piece of graph paper.
the coordinates of the point A,B,C are (1,2),(2,2),(3,0)respectively.given that the triangle ABC is mapped onto triangle XYZ by means of an enlargement with center at origin an scale factor 2.then the triangle XYZis mapped onto triangle RST under a reflection in the line y=1.write down the coordinates of the points R,S,T.
还有一题看不懂:
express:(a)136.80kg correct to the nearest 10kg
(b)0.06280 in standard form,correct to 2 significant figures.
ans:(a)_____________
(b)_____________
问题解答：
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