不能盲目读书的事例

一个水箱从里面量长5分米、宽3分米、高4分米.水箱里有不满一箱的水,现将一个长6分米、宽4分米、高2分米的长方体铁块垂直放入水箱里,这时箱内水溢出原有的1\3.水箱内原有水的体积与水箱 这件礼物成本是18元,标价是21元.结果是这个年轻人掏出100元要买这件礼物.王老板当时没有零钱,用那100元向街坊换了100元的零钱,找给年轻人79元.但是街坊后来发现那100元是假钞,王老板无奈还 有两个相同的骰子,每个面都分别写着“1、2、3、4、5、6”,一个骰子‘5’朝上,投出另一个骰子,它们朝上的面相同的可能性是（ ）国庆节,小明的妈妈带他去旅游,妈妈给他带了蓝、红2件毛衣 1.甲,乙两人同时加工零件220个,甲10分钟加工一个零件,乙12分钟加工一个零件,完成任务后,两人各加工多少个零件?（用比例解）2.有一个等腰三角形,两个内角的度数比是1：4,求这个三角形各内 1 一个棱长是20厘米的正方形玻璃缸盛满水,把它倒入另一个圆柱体玻璃瓶中,这只瓶底面直径是40厘米,高25厘米,瓶中的水有几厘米深?2 有一个圆锥形沙堆,底面周长是12.56米,高是1.8米,每立方米 英语翻译A company is trying to use its printers in a more environmentally efficient way.It already has a policy that it will never print a document containing more than 10 pages.Suppose that the settings on each printer are changed from printing 英语翻译Consider the straight line defined by the equation 3x − 4y = 12.(a) Find the area of the triangle determined by the coordinate axes and the givenline.(5 point)(b) Determine the coordinates of the point on the given line that is clos 英语翻译find a counterexample to disprove the statement"The Associative Property is true for division."求回答,最好是英文的 Mr .Lee owns a tea company and wants to make an exotic blend of tea .he has two brands to mix .one brand is an Indian tea that sells for $3.25 per pound .the other is a chinese tea that sells for $4.00 per pound .if he wants a mix of 35 pounds that w 我想做一道数学题用英语怎么说 有这样一道数学题（英语的）帮忙帮忙.我都晕了.Let "n" be the largest integer for which 14n has exactly 100 digits.Counting from right to left,what is the 68th digit of "n" A) 1 B) 2 C) 3 D）5 E）8 For all numbers B and D,the operation ＃is defined by b#d=(b-2)(d+1).If (-2)#x=12,then what's the value of x and why please give your formula and explain. 解一道英语数学题,“How many children have you,and how old are they?"asked the guest ,a mathematics teacher."I have three boys."said Mr.Smith.The product of their ages is 72 and the sum of their ages is the street number.The guest went to loo 急解答一道英文数学题.4 carpenters each built an average of 42 chairs last week,If no chairs were left uncompeleted and if P ,who built 50 chairs,built the greatest number of chairs,what is the least number of chairs one of the carpenter cou y=log3(x)的domain和range All the positive integers less than 49 are multiplied together.How many zeros will this product end in? 英文数学题一道如图 1.Given is the function f(x) =根号下（5x + 4） Calculate the equation of the normal on the graph of f in point A with x-coordinate 9 是让求当x=9时的函数值吗?） 2.其实不是题,而是两个小疑问.turning point和inflection point 求一道英文数学题!consider the linear function f(x)=ax+b.compute all ordered pairs (a,b) such that for all real numbers x,f(f(x))+f(x)=6x+60. Put the letters A to I in the nine boxes below to make the arithmetic formula right.The letters H,C,G and I are in the boxes.Figure out where the other five letters go.(C=3,G=7,H=8,I=9)□H×C=□G□=□I×□↑以上是我的英文家卷里的一 一道英文数学题,If a $25,000 machine depresses $800 per year or 10% of its original value each year,find a function that expresses the machine's value v after t years have passed.If this machine has no salvage value,what is the useful life of t 一些英语的数学题,what percent of 29 is what percent of 33.5 is 21?what percent of 55 is 34?41% of 78 is what 28% of 63 is what 58% of 63.4 is what 1、Excuse me.Could you tell me the way______the bookstore?----Sorry,I do not know.I am____here.A、to;stranger B、of;new C、to;new D、to;newer2、一游泳者沿河逆流而上,与A处将携带的物品（可漂流）遗失,在继续前有30分 find [f(x+h)-f(x)]/h,h≠0,for the functions defined as follows:(a) f(x)=2x2-3x(b) f(x)=4x-3x2(c) f(x)=x^3求详细过程（不需要英语）(a) f(x)=2x^2-3x(b) f(x)=4x-3x^2(c) f(x)=x^3 Bill,George,Sally and Ann are brothers and sisters ,One of them is 15,one is 12.One of the boys is 13,and one of the girls is 14,Bill is older than Sally but Ann isn't.How old are they?Bill is George is Sally is Ann is Find the volume obtained when the region between the graph of y =根号（x2 + 1） and the x-axis,between x = 3 and x = 4,is rotated around the x-axis.和微积分有关~ 6、Al and bill live at apposite ends of the same street.Al had to deliver a parcel at bill’s home,Bill one at Al's home.they started at the same moment,each walked at constant speed and returned home immediately after leaving the parcel at its des 英语翻译1、The three sides of a triangle are of lengths 1,m,n,respectively.The numbers 1,m,n are positive integers,1 less than or equal to m less than or equal to n .Take n=9 and find the number of different triangles of the described kind.2、A 英语翻译 英语翻译Raymond and Allan are play cards.They take nine cards with one to nine numbers and laid them facing downward.They draw out any two pieces of cards,if the sum of points is bigger than 10,Raymond will win;if it si less than 10,Allan will wi 英语翻译 John and Jay run the 220-yard dash ,and Jay wins the race by 10 yards .if Jay runs the race in 30 seconds ,what is the rate of each boy in yards per second?how long would it take John to run the 220-yard dash?