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x^2/16+y^2/4=1椭圆 的点到直线x+2y-根号（2）=0 的最大距离是? P十9＝一5,Pq=6求下列各式的值．（1)P^2q十Pq^2,(2)P^2十q^2, 原题是进价1000元,售价1500元,因为卖得不好,所以降价,但是不让利润低于百分之5,问应降价多少元? 关于利润率公式的问题如果出现销售额和利润均为负的情况,如何计算利润率? 几题英语完成句子,懂英语的朋友来解答下,6.is it true that only when Tom fully recovered____(他才回去）to work?(go)7.there musu have been an old temple at the foot of the hill50 years ago___(是吗)?(be)8.___(知道）to everybody 英语句子,不是很难,但弄不懂,注意,是 感激.They too started running.我在阅读上看见的,too不是用在句末么? 设点P在椭圆x²/4+y²=1上,求点P到直线x-2y+3根号2=0的距离最大值和最小值 椭圆x²/16+y²/4=1上的点到直线x+2y-√2=0的最大距离是 椭圆x²/16＋y²/4＝1上的点到直线x＋2y-根号2＝0的最大距离是 设x、y是两个数,规定x△y=4x-x+y/2,求5△(6△4)的值 （2）设x、y为两个不同的数,规定x□y＝(x＋y)÷4,求a□1.6＝2.5中a的值.（4分） 设xy是两个数,规定x△y—2/x+y,求5△（6△4）的值 你永远不会懂我英文怎写 “你永远不会懂”用英文怎么写? 你永远不会懂我有多在乎你用英语怎么说 我的心可能你永远不会懂”用来英文怎么说?“我的心可能你永远不会懂”用英文怎么翻译? 椭圆x^2/16+y^2/4=1上的点到直线x+2y-根号2=0的最大距离是( A.3B.根号11C.2倍根号2D.根号10解题过程是怎样的.. 椭圆x²/16+y²/4=1上的点到直线x+2y_√2=0的最大距离 椭圆x^2/16+y^2/4=1上的点丶到直线x+2y-√2=0的最大距离是 椭圆 (x^2/16)+(y^2/4)=1 上的点到直线 x+2y-根号2=0的最大距离是? 如果p,q表示两个数,定义p△q=(p+q)除以5,计算5△(10△15) 300字左右 懂英语的请进,帮我看下这个句子.please tell me your quantity and send me photos' of products you need. So that we can quoted for you. 懂英语请进 这个句子帮我翻一下?I saw the first performance of the play called the end of the road. 水泥的有效储存期是多少? 水泥公司生产的水泥存放在两个仓库里,第一仓库存水泥占56％.如果从第一仓库调6吨水泥到第二仓库,这是两个仓库存水泥相等,求两个仓库共存水泥多少吨? 一个英语句子不太懂,Dr.Green is busy working on a cure for AIDS,but from next month on he'll be able to fit in twenty patients or soon Monday morning.这句话里,那个or soon Monday morning.不太懂还有那个nest moth on 为什么这里 英语句子 我不太懂希望您能帮忙.Dear,I love you,too.If you are in love with the right person,every single day will be Valuntine's Day.So I fell very happy everyday. 一个英语句子看不太懂,in this work,Woolf expresses an important idea which is the existence of women's culture seperate from the men's,which is irrelevant not only from the patriarchal power but also from the culture of violence and from the 有个英语句子不太懂6Why don't we take a walk down to the river? 这里down引导副词词组吗We don't get to see enough of each othe each other是名词词组吗 get to是什么意思有机会或时间做某事.表示通过一个过程 英语翻译If you're a physician ,you can risk your patient's suicide as long as you don't intend their suicide答案给的翻译：如果你是一名医生,如果你不想让你的病人自杀,那么你就可以让病人冒着自杀的风险我的 x＋5x+6=0