jj 10/26 north America 760

fengfengok

AwA

AA Because three businesses are profitable, investment firm should invest in three similar businesses in another district.

AI: the most effective way for a businessperson to maintain long-time profit is to follow the highest standards of ethitic.

math

many jj in this month. can't think of any new.

coin tossing, the possibility is not 1/2, ask what is possibility of get head?

1. the possibility of head is twice that of tail.

2. the possibility of one head and one tail is 4/9.

verbal

many old jj

cr

one seems new. about full-time and part-time workers. the argument concludes that use more part-time workers is beneficial. ask support.

one city, the end of last year the number of adults without jobs is 1000  more than that in the beginning of the year, adults get part-time or full-time job increase 1500. so ---,sorry forget the question, because i didnot understand this question during the exam. who can remember it, please supplement.

rc

seems all are jj.

ecology art.

corporation should focus on service after products sale.

just can remeber so little.sorry.

happylifelin

Thank you !Best wish to you !

crystal2003

恭喜恭喜！我明天北美战哦！

沾点喜气。。。

Cantaloupe

谢谢！

specters

沾~

magileilei

thx

fengfengok

another math:

(7^6* 7^-2)/7^4=7^n, ask n=?

 

wcfang

Hi fengfengok

what is the answer of below question

coin tossing, the possibility is not 1/2, ask what is possibility of get head?

1. the possibility of head is twice that of tail.

2. the possibility of one head and one tail is 4/9.

my idea:

Head possiblity: x, tail possibliity: 1-x

(1)     x=2(1-x) à x=2/3 àOK

(2)     x(1-x)=4/9 à 9x² -9x + 4 =0 --> can't find real number solution

Ans: A

is that right??

cpcjustin

right