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標題:

• 十分急, 有勞翻譯至中文!!!!謝謝!!!!!@1@
• PES2008 & FIFA 08
• 本人十分想懷孕,,請問在經期開始當天計算,最易受孕的日子會在那幾天-@1@
• 打籃球,要1號好定係11號好-@1@
• ( 22 點 ) 數碼暴龍 05 主角一問,,,@1@

• 十分急, 有勞翻譯至中文!!!!謝謝!!!!!@1@
• PES2008 & FIFA 08
• 本人十分想懷孕,,請問在經期開始當天計算,最易受孕的日子會在那幾天-@1@
• 打籃球,要1號好定係11號好-@1@
• ( 22 點 ) 數碼暴龍 05 主角一問,,,@1@

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ce MATHS MC 急!!!

發問:

ce Maths 03 (q.34,41,42)

最佳解答:

34. There are 6 balls inthe bag in which 2 of them are green. P(at most 4 draws) = 1 – P(5 draws required) (atmost 4 draws and 5 draws are mutually exclusive) = 1 – (4 / 6)(3 / 5)(2 /4)(1 / 3) = 14 / 15 The answer is C. 41. This question is outof syllabus in CE mathematics, but it is in the syllabus of CE additionalmathematics. Sum of roots, α + β = 3 As α is one of the root, α2 - 3α + k =0 gives α2 = 3α – k α2 + 3β = 3α+ 3β – k = 3(α + β) – k = 3(3) – k = 9 – k The answer is C. 42. The graph shows y =-x2 + ax + b For the graph is openingdownward, i.e. the coefficient of x2 must be negative. Finding the y –intercept, it is negative. Put x = 0, i.e. y = b While y 0 The answer is C.

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