1 Three pieces of wire have an average (arithmetic mean) length of 39 inches and a median length of 48 inches.What is the maximum possible length, in inches, of the shortest piece of wire?
A.21
D.30
E.33
答案是A
2 For any positive integer x, the 2-height of x is defined to be the greatest nonnegative integer n such that 2n is a factor of x.If k and m are positive integers, is the 2-height of k greater than the 2-height of m ?
(1)k > m
(2)
is an even integer.答案是B。表示看不懂题目
3 A certain company expects quarterly earnings of $0.80 per share of stock, half of which will be distributed as dividends to shareholders while the rest will be used for research and development.If earnings are greater than expected, shareholders will receive an additional $0.04 per share for each additional $0.10 of per share earnings.If quarterly earnings are $1.10 per share, what will be the dividend paid to a person who owns 200 shares of the company’s stock?
答案是C，怎么算都算不到答案
4
For which real numbers x is the expression
2/(X-2)(X+1)not defined?
E.x = –1, 0, or 2
表示不理解,答案是D
For any positive integer x, the 2-height of x is defined to be the greatest nonnegative integer n such that 2n is a factor of x.If k and m are positive integers, is the 2-height of k greater than the 2-height of m ?
(1)k > m
(2)
is an even integer.答案是B。表示看不懂题目
3 A certain company expects quarterly earnings of $0.80 per share of stock, half of which will be distributed as dividends to shareholders while the rest will be used for research and development.If earnings are greater than expected, shareholders will receive an additional $0.04 per share for each additional $0.10 of per share earnings.If quarterly earnings are $1.10 per share, what will be the dividend paid to a person who owns 200 shares of the company’s stock?
答案是C，怎么算都算不到答案
4
For which real numbers x is the expression
2/(X-2)(X+1)not defined?
E.x = –1, 0, or 2
表示不理解,答案是D
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发表于 2011-9-21 10:20:59
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