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直线y=-2x+b与两坐标轴围成的三角形面积为3 （1）求这条直线的解析式 （2）求原点到这条直直线y=-2x+b与两坐标轴围成的三角形面积为3（1）求这条直线的解析式 （2）求原点到这条直线的距 已知：a,b,c是三个互不相等的正整数求证：a^3-ab^3,b^3-bc^3,c^3a-ca^3三个数中,至少有一个数能被10整已知：a,b,c是三个互不相等的正整数,求证：a^3-ab^3,b^3-bc^3,c^3a-ca^3三个数中,至少有一个数能被10 一段路已经修了36千米比全长的60%多九千米这段路全长多少千米? 已知n个整数 x1,x2,…..xn,以及一个整数k (k a+b+c=1则 ab+bc+ca的最大值为 划线提问(只要是懂英语的人都应该会做的,帮帮我吧）Bruse is (making a model plane).My parents are (cooking)in the room.The man is mending (a broken desk).The women are washing (their clothes).Lucy is counting (the birds)under the 1 It's so different a question.I think he will have problems_______.A work it out B working it out C in working out it D work out it 2 These aren't enought chairs.Would you please ________ ones here?A to bring another three B bring more threeC to mak it's so diffcult a question.i think he will have problems （ ）.A work it outB working it outC in working out itD work out it 台湾话 如何科学地将一个区间分成几段?一个区间,例如：【2,3】,如何将他分成几个区间,怎么样的分法比较科学? 根据句意,用适当的情态动词填空1.-is Mr Wu in the libray?-no,he____be there.he is waiting for me at the school gate.2.my mother is ill.i am afraid i ____stay at home.3.____you tell me the way to the zoo?4.Peter ____come with us tonight,bu 你能用转化的方法求出下面图形的五个内角和吗?先画一画,再算 根据句意或情景内容,用适当的情态动词填空.1.- we play football now?-good idea!2.-When we meet?-Let's make it half past nine tomorrow moring.3.-Keep off the grass.We walk on it.4.-That sweater be mine.I put it there.-No,it be yours.Yo 如图5.1.3-9,角B和角D是同旁内角吗?为什么?你能用直尺画出角B的同旁内角吗? 如图,角B和角D是同旁内角吗?为什么?你能用直尺画出角B的同旁内角吗?相机不太看的清,左上角是A,左下角是E,右上角是B,右下角是D,最右边是C,等下有家教来我们家上课.他给我留的作业. 急求一套人教版新课标小学二年级数学复习题 Who was the first man to climb onto the top of Mount Qomolangma?When did he do it? 有没有人教版的小学6年级上科学试题 比较简单的, Who is the first man ti climb onto the top of Mount Qomolangma?When did he do it?用英语回答 英法联军从圆明园抢走了多少珍宝? 偶函数y=f(x)在区间[-4,-1]上是增函数,下列不等式成立的是A.f(-2) 一段路已经修了36km,比全长的60%多9km,这段路全长多少千米? 已知偶函数y=f（x）在区间（-无穷,0】上是增函数,下列不等式一定成立的是 A、f（3）＞f（-2）B、f（1）＞f（a²+2a+3）请写出详细过程,谢谢 偶函数y=f(x)在区间[-4 -1]是增函数,下列不等式成立的是( )A.f(-2)＜f(3) B.f(-π)＜f(π) C.f(1)＜f(-3) D f(-根号2)＜f(根号3)D 是负的根号2大于根号3 正确答案就是D 已知偶函数y=f(x)在区间(-无穷,0】上是增函数,下列不等式一定成立的是.A.f(3)＞f(-2) B.f(-π）＞f（3）C.f（1）＞f（根号2） D.f（a^2+2)＞f（a^2+1) 一段路已修了36km,比全长60%多9km.这段路全长多少千米? 1.修一条公路,已经修了80千米,正好占全长的2/9,这条公路长多少千米?2.甲、乙两地相距600千米.一辆客车从甲地开往乙地,每小时行45千米,行了2小时后,一辆货车从乙地开往甲地,每小时行40千米, 我要人教版小学科学书上的所有题目和答案! -4X+X的平方还能在等于吗,他们是同类项吗 若-1/4x^2 y^3a+b与4x^a-2b y^6是同类项,则x=?y=? 已知15m^x n和-2/9m^2 n是同类项,则|2-4x|+|4x-1|的值为?已知15m^x n和-2/9m^2 n是同类项,则|2-4x|+|4x-1|的值为（ ）A.1 B.3 C.8x-3 D.13 请在这里概述您的问题合并下列各式的同类项 4-x+4x-7合并下列各式的同类项4-x+4x-7求