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如题,求阴影部分面积和周长 一切都好!生活很美好!希望你也能快乐!喜欢一个离开很久的女生,告白时问她一切安好,结果回了这么一句, 答下题,主意旁边有个8,先来先答,求阴影部分周长和面积! 各求两题的阴影部分的面积和周长 如果一元二次方程ax²-bx+c=0有一个根为0,则c= ,关于x的一元二次方程2x²-ax-a²=0则a=关于x的一元二次方程2x²-ax-a²=0，有一个根为-1，则a= it was a lovely sunny saturday morning in early october 下列是一元二次方程的是 A 2x+3=1/x B ax²+bx+c=0 C （x-2）²=x² D 3（x+5）²=1 Great weather!It was sunny all day .We r_______ Beijing at 10:00 in the morning.My friends and I h______ our breakfast on the plane.We went to the hotel b___ taxi. 《游园不值》表达了诗人怎样的感情? 把方程（2x-1)(3x+2)=x²+2化成ax²+bx+c=0的形式后,a,b,c的值依次是（ ） He asked me to take l of tests and he says that l’m fine.（l开头的单词） f(x)=x²+2x+a,f(bx)=9x²-bx+2,其中x∈R,a,b为常数,求方程f(ax+b)=0的解集 It is easy to take care （of）要不要加上of呀 If I (had know) how to sing the song,I would have joined you that day.为什么不是knew 1:If I ___(know) how to sing the song,I would join you2:I___(not have) my lunch,so I'm hungry 3:The teacher gave me some___(help) advice 怎么些啊 Have you enjoyed yourselves?Ms Zhou is about to sing us a song “Every time”. \在补全对话中,how do you feel how are you feeling now 可以互换么答语是much better,But I still feel bad此处应用哪个？ begin和know的现在分词 want take much moneychinese he 【 】 gets together with his friend,so he misses them very much How does Mike feel now?的同义句是什么 The mother stood in the cold wind,___(wait)for his son ___(come)back还有原因. 《游园不值》的作者是( )朝诗人（ ）题目中的“值”字的意思是（）,最能反映春天生物生命旺盛的句子是? he with his old friends＿＿＿（have）a warm get-together now. Mike teach English 改错 已知3x+8=4分之x的解满足|x-2|=0,则a分之1的值是 主语+谓语动词+adv+that从句 多造几个句子 全国最新手机号码段急 How old is Mike?等于什么 （） （） Mike`s () 0016045180***是那个国家的电话号码?还有怎么打国际长途 手机不能打吗?要具体点的 HOW OLD IS 说就行 Mike is 14years old.David is 12years old.(合并为一句）Mike is 2 years _______ _________ David.