正方形的性质

x-1/3-x/6=4-x/2 （英语）选择 6：x=0.4：3/2 英语选择, 1.We need plenty of fresh fruit every day.改否定句2.I should drink a lot of water every day.改否定句3.Sue's diet is as healthy as her sister's diet.用陈述句表达相反意义4.Your diet is unhealthy than mine.保持句意不变 英语连词成句①Tom matter the what's with②matter is what the them with③the it into gote flies按要求写句子①My mother is going to (buy me a T-shirt)对括号里提问 一.根据中文写英文.1.十条金鱼________ 2.三箱牛奶________ 3.八只鹿________ 用以下单词及短语编一个故事,不少于50个单词.Sunday twins as...as taller than happy parkThe twins are in th parkLt is Sunday today.( ) 42x-0.6乘100=26.1 解方程 等腰三角形的周长为12,设腰为x,底边为y.如以x,y为边构成矩形的长与宽,求矩形·面积的取值范围.我的答案是：都知道要使矩形面积最大,只有长与宽相等,所以3x＝12x=4所以矩形面积取值范围是 函数y=根号下x²-1+根号下1-x²的值域为___ 什么是介词短语 它在句子中的做什么成份如题 介词在句子中当什么成分?介词短语呢? F(x)=2（x2）-3x (-1≤x≤2)F(x)=-（x2）+4x+8 (-4≤x≤4)F(x)=1/1-x（1-x)F(x)=更号下-(x2)+2x+8F(x)=2-更号下4x-(x2)F(x)=x+更号下2x-3 求函数f(x)=x平方-2ax+1,x大于等于0,小于等于2的值域. 要求：在短文的空格内填入适当的次,使其内容通顺,每空格限填一次,首字母已给.John was going to move into a new flat today.There was a very nice clock in his f___ house.John thought,"I,m not going to l___ the workers carry 已知函数ƒ﹙x﹚=2x²+ax+b／x²+1 的值域为[1,3],求 a、b的值. 英语固定词组搭配在句子中能够担当哪些成分? 设函数f(x)=ax²+bx+3x+b的图像关于y轴对称,且其定义域为[a-1,2a](a,b∈R),求函数f(x)的值域. 1.We visited our friends last night.(对visited our friends提问)2.He had lunch at school every day last year.(改为否定句)3.My aunt visited our school then.(对visited our school提问) All the students are outside in the ＿＿＿＿我急呢!今天就要交.快 请高手帮我分析一下以下几个英语句子的意思与句子成分与其中的词组.1：A large amount of carbon dioxide that we put into the atmosphere every year comes from the process of making and eating food.2: A cow has to be fed and 用所给动词适当形式填空I d' like ( ) the piano.动词：play我填的是playing,可答案是to play,我觉得我的答案也对,应该有两个答案,可“答案”里却只有一个答案,这是怎么回事? 英语词组成分分析tell sth to sb/offer sth to sb/give sth to sb/provide sth for sb/provide sb with sth 等等诸如此类的phrases中prep.短语作什么成分?详细解说一下 3Q 1.若负2≤x＜3,则1/x的范围是2.若负12＜x＜60,15＜y＜36,则x/y的取值范围是3.设1＜x＜3,5＜y＜7,则x-y的范围是4.设x,y∈R,比较（x²+y²）²与xy(x+y)²的大小5.设x,y∈R,比较x²+y²与2（2x- 介词短语在句中的成分mother prepared some cake for me.介词短语“for me” 是修饰宾语"some cake"的定语还是补充谓语动词“prepared”的状语? 在英文中可用介词短语和动词短语来表达交通方式.其中动词短语用作句子的 语,而 用作句子的方式状语. 1.函数Y=|x-a|的图象关于直线x=3对称,则a=2.设非空集合A=｛x|x^+(b+2)x+b+1=0 b不等于0,b属于R},则集合A中所有元素之和是3函数y=x^-2|x|的单调递增区间是 1. 1. 已知函数图像y=f(x)的图像关于直线x=-1对称,且当x∈（0,+∞）时,有f(x)=1/x,则当x∈（-∞,-2）时,f(x)的解析式为________. A.-1/x B.-1/(x-3) C.1/(x+2) D.-1/(x+2) 2.函数y=|x|/x +x的图 1.2.解方程3.求函数 第三题选神马? 第三题是神马