小GWD。。小数学。。呼唤NN来传到授业解惑啊

piaoface

At 9 a.m., a hiker was due south of point of P. What direction was point P from her position at noon?
(1) From 9 am until 11 am she walked due east at 2 miles per hour, and from 11 am until noon, she walked due north at 3 miles per hour.
(2) At noon, she is exactly 4.5 miles from point P

我选的是C。画图应该是可以的

但是答案是E。有木有

呼唤牛牛们来帮小女子解惑啊。。。。

zhadanking

不知道我的回复能不能看见。发不了图片。就把我头像暂时改了。LZ明白了我就改回来。

路宇希

LS好负责。。。画得很对啊~LZ看LS头像吧~

zhadanking

有两个可能的终点。一个A。一个B。我估计你画的图只考虑了B点。忽略了A点。

piaoface

不知道我的回复能不能看见。发不了图片。就把我头像暂时改了。LZ明白了我就改回来。

-- by 会员 zhadanking (2011/11/18 23:03:15)

哇哦。。。你大油菜了。。。太感动了。。。谢谢你~~~我懂了~~~
好了好了。。你可以把头像改过来了。。但是这头像挺有个性的。。。

小林琰

THX