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如图,点A对是反比例函数y=k/x(x>0)上的点,OA=根号5,点B的坐标为（3,0）,AB与x轴的锐角为45度,求k的值点A对是反比例函数y=k/x(x>0)上的点,OA=根号5,点B的坐标为（3,0）,AB与x轴的锐角为45度,求k的值. 如图,已知点A的坐标为（根号3,3）AB⊥x轴,垂足为B,连接OA,反比例函数y=x／k（k＞0）的图像与线段OA,OB分别交于点C,D.若AB=3BD,以点C为圆心,CA长为半径作圆,则该圆与x轴的位置关系是 （填“相离” 若直线y=kx与曲线y=1/3x^3+4/3相切,求实数k的值 have you ever ___ America yet?A.Have…been to B.Have…gone to C.Have…been in D.Have…gone in have you ever been to hongkong 还是gone? have you ever gone to和have you ever been to的区别? have ever been to 和have gone to有什么区别 Have you ever been in America?和Have you ever been to America?什么区别 一个做匀速直线运动的物体7s里通过的距离是21m,那么它前3s的运动速度是多少,相当于多少km/h? 某恒星距离太阳约4年相当于多少KM 谁能出关于五年级的找规律和解决问题的策略的奥数题并附上答案? 1.合唱队有男生35人,女生42人.参加训练时要把他们分别分为人数相等的小组,每组最多有几人?这时男生和女生分别有几组?2.有一个长方体,长70厘米,宽50厘米,高45厘米.如果要把它切成同样大小 《我的伯父鲁迅先生》中的重点句子和理解 have nothing to do but do如何翻译 have nothing to dohave nothing to do=_____________________ i have nothing to do today.改为同义句the boy has to buy himself a ticket改为一般疑问句 I have nothing to do today.(同义句） 若直线y=kx与曲线y=x^3-3x^2+2x相切,试求k的值 若直线y=kx 与曲线y=x^3-3x^2+2x相切,求k的值 若直线y=kx与曲线y=x³-3x²+2x相切,试求k值 我的伯父鲁迅先生中描写人物动作的句子 一个茶杯架有1.2.3三层,共放了192只杯子,先从1层拿出与2层同样多的杯子放进2层,再从2层拿出与3层同样多的杯子放进3层,最后再从3层拿出与1层同样多的杯子放进1层.这时三层的杯子同样多.2.3. 已知^3x+y=0与直线kx-y+1=0的夹角为60°.求实数K的值RT 一个正方体水箱,棱长为10分米,将一块长5分米宽2分米高2分米,的长方体铁块放入水箱中,完全浸没在水里,水面会升高多少?要有讲解,算式, I have just moved to a house in（ )Bridge Street.括号里能否填the? I have just moved to a house in Bridge Street.为什么要加HAVE这句话为什么要加HAVE? Percy Button 珀西.巴顿斯 I have just moved to a house in Bridge Street. Yesterday a beggar knocked at my door. He asked me for a meal and a glass of beer. In return for this, the beggar stood on his head and sang songs. I gave him a meal. He ate 怎么回答选择疑问句 Has the writer just moved to a house in Bridge Street or not? 用简短形式或完整句子回答以下问题.1.Were you absent from school last week?__________________2.Where were you on Sunday?_________________3.Were you at the hairdresser's on Saturday?__________________ I have just moved to a house in bridge street.这句话里moved 后面为什么要加to? 把下列诗句补充完整,并回答问题.1.长安一片月,( ).（ ）2.空山新雨后,（ ）.（ ）3.（ ）,白帝城边古木疏.（ ）4.洛阳城里见秋风,（ ）.（ ）一.在诗句后的括号里填上该诗的作者.二.第二句诗 把下面的句子补充完整,(1)太阳像（ ）,（ ）.(2)“你瞧,他们在这里啦!”桑拿拉开帐子.渔夫( ).(3)深夜,听着窗外簌簌的下雪声,我想（ ）.