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5和11的圖在檔案裡
5.812-!-item-!-187;#058&000553
If , then m =
(A) 17
(B) 18
(C) 34
(D) 35
(E) 36
9.1700-!-item-!-187;#058&001066
Last year the range of the annual salaries of the 100 employees at Company X was $30,000.If the annual salary of each of the 100 employees this year is 10 percent greater than it was last year, what is the range of the annual salaries of the 100 employees this year?
(A) $27,000
(B) $30,000
(C) $33,000
(D) $36,000
(E) $63,000
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【答案】C
【思路】Last year the range of the annual salaries of the 100 employees at Company X=30,000(假設最大annual salaries=50,000,最小annual salaries=20,000)
又今年比去年annual salary漲10%表示the range of the annual salaries of the 100 employees this year=50,000x(1.1)-20,000x(1.1)=33,000
我的思路是30,000 乘以110/100=33000行嗎?
11.1799-!-item-!-187;#058&002415
In the figure above, the radius of the circle with center O is 1 and BC = 1.What is the area of triangular region ABC ?
(A)√2/2
(B)√3/2
(C) 1
(D)√2
(E)√3
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