老人与海英文版

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(a/(b-d))-(b/(a-c)) 求因式分解的过程 因式分解 a^2+2a(b+c)+(b+c)^2 初三一道因式分解题3X²+4xy-y² 五年级下册语文14课课后题1.2.3,急,问答完整1.想一想:课文写打了哪些“亲人”?从那些事情中可以感受到他们的是“亲人”?2.课文有不少句子表达了强列的思想感情:(1)是您带着全村 分解因式:4a^2-b^2+2b-1 (x-4)平方=(5-2X)平方 1.(x²-2x)²-2(x²-2x)-32.已知15x²-47xy+28y²=0,则x除以y的值为?3.已知多项式2x³-x²+m有一个因式是2x+1,求m的值4.已知x+y=10,x³+y³=100,求x²+y²的值5.已知a+b+c=0,求代数 如图已知∠BEC=∠B+∠C,求证AB||CD 如图,已知∠B+∠BEC-∠C=180°求证AB平行CD 初中数学题(判断对错)②在△ABC中,a、b、c分别是∠A、∠B、∠C的对边,若,则△ABC是钝角三角形;③在△ABC中,a、b、c分别是∠A、∠B、∠C的对边,若,则∠C=90°;④在△ABC中,a、b、c分别是∠A 看拼音写汉字jùn gōng xiàn mù shōu liǎn lǚ lì yǐn qíng( ) ( ) ( ) ( ) ( )zhì kǎo biáo hú fù gào huò dá rǒng cháng( ) ( ) ( ) ( ) ( )2、 给加点的字注音.豢养( )解剖( )粳米( )破绽( )皈依( ) 如图在△abc中,ab=ac,CD⊥ab交ab于d,∠abc的平分线be交cd于e,求∠bec与∠a的关系 在三角形ABC中,AB=AC,CD⊥AB交AB于D,∠ABC的平分线BE交CD于E,求∠BEC的度数 如图,在△ABC中,AB=AC=8,BC=4,点D在边AB上,点E在线段CD上,且∠BEC=∠ACB,BE的延长线与边AC相交于点F.(1)求证:BE·CD=BD·BC;(2)设AD=x,AF=y,求y关于x的解析式,并写出定义域;(3)如果AD=4,求线段BF的长. 如图所示,三角形ABC中,∠ABC=∠ACB,CD⊥AB交于AB于D,∠ABC的平分线BE交CD于E,则∠BEC的大小是 七分之一除以三分之二乘以五 2和3题.第二题麻烦给我个过程, 2和3题. 第2和3题 请问这个英语句型怎么解释?The emphasis shifted from that of the outsider looking in at the firm,to that of the financial manager making tough day-to-day decision that would affect the firm's performance.请问一下那个of是什么用法 六年级脱式计算带答案的!拜托了 帮我讲解一下英语句式she argues that discrimination against girls is so typical of co-educational schools that single-sex classes are the only answer.两个that分别是什么句式 英语句式解析you may find that those animals are always given something to eat in return for doing them .这是什么句型 英语句型求讲解He has let me use his House to put on fund raising events to raise money for youth at risk programs.求全句成分划分,两个to在句子里起什么作用?put 这类句型是复合句吗? EXCEL将A1,A2,A3,A4,A5的各个数字相加的值,如果大于9,则继续将该值的各个数字相加,直到小于等于9.A1=6,A2=6,A3=6,A4=6,A5=5.即:A1+A2+A3+A4+A5=6+6+6+6+5=29=11=2用公式如何表达? 将多项式(x+y)^2-4(x+y)+4因式分解 已知a+x²=2009,b+x²=2010,c+x²=2011,且abc=6030,求a/bc+b/ca+c/ab-1/a-a/b-a/c的值 长方形周长20厘米,长与宽比3∶2,面积是多少? 英语答案同非常详细的解释1.He was made () of the meetingA chaiman B a director C a manager D the president 2.This film is ()A more good than ban B better than bad C more good than that one D better than bad film 3.Please give me ()you ha 一 选择1 Children should't have more money____ is needed.A than B which C that D whose 为什么请帮忙说下原因2 We were in___ when we left that we forgot the airline tickets.A a rush so anxious B a such anxious rush C so an anxious rush D s 2.3题,过程,谢谢 两个初三因式分解计算题①(2x-1)(x+1)=(3x+1)(x+1)②(2x+1)^2+3(2x+1)+2=0