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已知抛物线y1=1／2x^2+3x-k与直线y=2x+4的交点的纵坐标为6.（1）求抛物线的解析已知抛物线y1=1／2x^2+3x-k与直线y=2x+4的交点的纵坐标为6.（1）求抛物线的解析式.（2）求抛物线y1=1／2x^2+3x-k与直线y= MACD是什么意思啊 求答案? 直升飞机靠什么来前进?直升飞机有两个螺旋桨,大螺旋桨是为直升飞机提供上升的动力,而小螺旋桨是为直升飞机前进提供动力, 谁有狮子座流星雨的视频 零式飞机好到什么程度 直升机是怎样前进的 谁有《The Further In The World》这首诗这首诗是泰戈尔写的,即《世界上最遥远的距离》有的就请告诉我吧,我好想要哦! 好心人帮我解释下这句话所涉及的语法知识吧~~~Nor can one prevent further advances in the further. 氧单质化学式请问氧单质的化学式是什么? A={x|(x-1)^2 John saw a cat in a tree while he was taking photos in the garden./saw a cat in a tree画线 While John was walking to school ,he saw a cat in the tree 对in the tree 提问 A={x|(x-1)^2 飞机是怎么控制前进的? 已知函数f（x）=x2-2ax+5（a＞1）． （1）若函数f（x）的定义域和值域均为[1,a],已知函数f（x）=x2-2ax+5（a＞1）．（1）若函数f（x）的定义域和值域均为[1,a],求实数a的值；（2）若f（x）在区间（ 英语中salary与wage有什么区别 左宗棠 李鸿章 曾国藩的事迹简单一点,概括的就行,介绍事件要完整 英语翻译快 how tall 与how high 的区别 Please let me know the status of the tooling issues. It is high time we sense of social responsibility and hard so that weIt is high time we ( ) sense of social responsibility and ( ) hard so that we can live up to our country's expectations.A、must develop；muststudy B、developed；stiudied C、are 用和睦相处造句要稍微有一丁点水平的,像六年级的! 和睦相处 受益匪浅造句. 不认识这个化学式 NaClO₂H₂ONaClO₂H₂O是什么,它的性质特点什么的怎么保存,有什么用等等 大侠帮我 椭圆标准方程中a、b是什么 求椭圆标准方程.a=4,bc=3√7,且b 椭圆标准方程右边1代表什么? REFLECTIONS ON THE REVOLUTION IN FRANCE怎么样 REFLECTIONS ON THE REVOLUTION IN FRANCE PENGUIN CLASSICS怎么样 REFLECTIONS ON THE REVOLUTION IN FRANCE OXFORD WORLDS CLASSICS怎么样 The French Revolution broke out in 1789.At the time France was in a crisis.The government was badIn the United States,it is not customary to telephone someone very early in the morning.If you telephone him early in the day,while he is shaving or havi 用listen to the teachers carefully造句