危险作业审批人员职责
来源:学生作业帮助网 编辑:作业帮 时间:2024/05/07 18:17:07
若不等式组X的平方-X-2>0,2X的平方+(2K+5)X+5K<0的整数解只有-2,则K的取值范围是?
用配方法解方程 x²+6x+7=0
6x=7.5.解方程
英语选择
这个咋做,英语选择
The growth of part time and fiexble working patterns ,and of training and retraining schemes,____more women to take advantage of employment opportunities.A.allow B .have allowed C .allowing D.allows
这个英语选择如何做呀The narrow passage _ the big mountain for one mile.A.passes through B.lesds to C.leads on to D.reach
英语选择帮你一下
两道英语选择()______trouble,I'm going to forget the whole affair.A.Then rather cause B.Rather causing C.Rather than cause D.Rahter than caused( )The brilliance of his satires was___make even his victims laugh.A.so as to B.such as to C.so th
英语选择两道
英语
英语选择.
两道应英语选择1.Don't worry.We will e-mail you as soon as we_______in Hong Kong.A.arrive B.arrives C.will arrive D.would2.Don't worry.l will be with you________your mother comes back from work.A.when B.until C.as soon as D.unless
(x-2)(x-3)+2(x+6)(x-6)-3(x-4)^2其中x=2
3:4=6:(x-2) X是多少
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.