oob73zj92b的部落格

標題:

ce maths 03 Q.42,51 (20點)

發問:

http://www.sendspace.com/file/qaa90y Because there are graphs,please download the questions from the above website,thank you 更新: I would like to ask Q.9 also, i just find the answer is D, but i am wrong,why the answer is C?

最佳解答:

• Lumix LX2好d...定係GR-D好d---
• P chan (english tutor)
• Statistic Question ( urgent )@1@

 

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Q.9: If correct to 4 sig. fig., you must know the fifth decimal place (0.8448? & 0.8452? ). However, it is not given to you ! So, ans. D is wrong. 2008-05-03 20:15:53 補充： Q.42: y-intercept = b<0 x-coordinate of vertex = -a/2(- 1) >0 => a>0 ANS: C 2008-05-03 20:21:09 補充： Q.51 : (< = angle , ^ = triangle !) 2008-05-03 20:22:21 補充： ANS : B

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