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  1. ...我地點樣睇oxidation reduction有冇反應呢? 首先找出還原的離子 Fe3+ + e& minus ; --> Fe2+ 電勢0.77 氧化的是 Cl2(g) + 2 e& minus ; ---->2...

  2. ...s because it'll be more easy to find out the answer! Tips: Add (for minus ), minus (for adding) ... the opposite number and find it!

  3. ... than l2 thus, l3=4 l2 and, since it is an unmarked thermometer, we need to minus the temperature of melting ice to have an accurate distance. It's because...

  4. x+3y+ = & minus ;11? 要加什麼z? 2009-02-05 14:41:17 補充: Question 4: In the...

  5. GDP = consumption + gross investment+ government spending + (exports & minus ; imports) 因:imports 減少了 $10 million — 果: ...

  6. ... that change your net worth (i.e. the amount owed to you minus the amount you owe others). Standard practice is to record and...

  7. Draw a line AH perpendicular to DC and meet DC at H. Area of △ADK=DKxAH/2 [底x高/2] Area of △AKC=KCxAH/2 Area of △ADK/Area of △AKC =(DKxAH/2)/(KCxAH/2...

  8. ...番marginal valuation同埋equi-marginal principal。 咁因為consumer surplus即係the total value minus the total exchange value, 只要個seller抽取嘅lump-sum fees唔大過個consumer surplus...

  9. 1) f(x) is divisible by x − k => f(k)=0 f(k)=0 3k^3-4k+k=0 3k^3-4k=-k...(*) when f(x) is divided by x + k, the remainder is f(-k) f(-k)=3(-k)^3-4(-k)+k=-(3k^3-4k)+k=-(-k)+k=2k Ans: A 2) a polynomial f(x) is divisible by x−1 f(1)=0 If f(x-1) is...

  10. Please read: Q.1, Q.2, Q.3 --- http://i.imgur.com/EgAzymA.jpg Q.4, Q.5, Q.6 --- http://i.imgur.com/VCWBJsG.jpg