11. fuel of the first 2 mile is 15 dollars. And the rest cost at a fixed price. Ask the cost of 14 miles.
(1) 3.5 miles cost 20 dollars
(2) x (specific number) miles cost 40 dollars.
我觉得答案是D ,可机警说是B,求确认
Y=km+b ask the slope of K
(1) line y=(1-m)b+a parallel Y
(2) Y intersect with line y=2x+3 at point (2.7)
答案是A 吗?作者: linlin315 时间: 2003-4-16 23:22
我马上要考试,几道新机警,求助!!急!!!!
ask the unit digit of p^xy
(1) the unit digit of p^x is 1
(2) the unit digit of p^y is 1
题都没看懂,帮忙解释一下及思路
这道题的意思是:p的xy次方的各位是多少?个位为1的任何次方都为1。所以答案是D吧!!
是这个答案吗??作者: linlin315 时间: 2003-4-16 23:25
11. fuel of the first 2 mile is 15 dollars. And the rest cost at a fixed price. Ask the cost of 14 miles.
(1) 3.5 miles cost 20 dollars
(2) x (specific number) miles cost 40 dollars.
我觉得答案是D ,可机警说是B,求确认
同意!!我认为应是D
[此贴子已经被作者于2003-4-17 18:08:23编辑过]
作者: linlin315 时间: 2003-4-16 23:31
Y=km+b ask the slope of K
(1) line y=(1-m)b+a parallel Y
(2) Y intersect with line y=2x+3 at point (2.7)
答案是A 吗?
不知道这题中b,m,a那个是常量啊!那个是变量啊!如果题中没说我认为还不能确定答案!
不知道jj的答案是什么啊??作者: joywzy 时间: 2003-4-17 12:38
11,D吧.作者: oddyuibe 时间: 2003-4-17 21:51
11题应该是D
personal view~
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