1. X,Y兩忙掙錢,問 In June,the rate X 掙的錢 to Y掙的錢?
A) X In June掙的.錢比Y In May掙的錢多50%
B) Y In June掙的錢比In May掙的錢增長了25%
2. a square 面積爲16,T爲square 內一點,與底邊形成三角形,TA 爲高,A 爲底邊上一點,問TA長?
A) 三角形面積爲square 的 1/3
B) 三角形面積與square內剩餘面積之比爲 1/2
3. x,y,z 爲consecutive integers, 且x z,問z^2 - x^2 -y^2 不可能爲的值
A.12 B.6 C.3D.4
4. given the formula,ask 從50加到100的和?
5. lottery $16 billion, separate as gifts, government payment, and expense, give the relation of payment and gift the relation of payment and presentation, ask the payment in $ amount
6 . r1, r = 1- whats the value of : r - = 1/r
7. 一個三角形x,y,z,分別爲三個外角,確定x的度數?
A. x=y
B. x=z Susans answer is C
8. 99到301間的偶數的和
答案:20200
方法:99到301間的偶數的和=100到300間的偶數的和,等差數列求和=N/2= 101/2=20200
: 兩個數列S,T,S 由偶數組成,T由奇數組成,兩個數列個數相同,問S的MEDIAN 和T的算術平均值誰大?