If the prime number p and t are the only prime factors of the integer m,is m a multiple of p^2*t
1)m has more than 9 positive factors.
2)m is a multiple of p^3.
答案是 B
Store s sold a total of 90 copies of a certain book during the seven days of last week,and it sold different numbers of copies on any two of the days.If for the seven days store s sold the greatest number of copies on Saturday and the second greatest number of copies on Friday,did Store s sell more than 11 copies on Friday?
1)Last week Store s sold 8 copies of the book on Tuesday.
2)Last week Store s sold 38 copies of the book on Saturday.
答案是 B
Is xy>0?
1)x-y>-2
2)x-2y<-6
答案是 C
The figure shows the top side of a circular medallion made of a circular piece of colored glass surrounded by a metal frame,represented by the shaded region.If the radius of the medallion is r centimeters and the width of the metal frame is s centimeters,then in terms of s and r,what is the area of the metal frame,in square centimeters?
答案是 E.
各位帮帮忙,,,,这些题我接不出来,,,希望把解题步骤写出来作者: lovesiqi4665 时间: 2011-10-2 21:32
If the prime number p and t are the only prime factors of the integer m,is m a multiple of p^2*t
1)m has more than 9 positive factors.
2)m is a multiple of p^3.
答案是 B
