1.Write down the number of significant figures for each of the following approximate values.
(a)141.30 (correct to the nearest 0.01)
(b)24 100 (correct to the nearest ten)
2.Express 3.124 km in the following units and round off the results correct to 3 significant figures.
(a)m
(b)cm
請幫忙!!!
急!!!Thx~
Maths.
2007-09-07 5:25 am
回答 (2)
2007-09-07 5:30 am
✔ 最佳答案
1a)141.295~141.305b)24050~24150
2a)
3120m
2b)
312000cm
2007-09-07 5:30 am
1(a) 5
(b) 4
2.(a) 3 120 m
(b) 312 000 cm
(b) 4
2.(a) 3 120 m
(b) 312 000 cm
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