六道对数方程的题!1)2的X次方乘以3的X次方=216,求X的值.2)根号下10的X次方乘以0.1=1000,求X的值.

潜水小虫2022-10-04 11:39:542条回答

六道对数方程的题!
1)2的X次方乘以3的X次方=216,求X的值.
2)根号下10的X次方乘以0.1=1000,求X的值.
3)4的3X减1次方=8分之1的5-2X次方,求X的值.
4)2的(X的平方减去2X再加上1)次方=1,求X的值.

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afu_0606 共回答了14个问题 | 采纳率92.9%
1.X=3(2的X次方乘以3的X次方=6的X次方=216,x=3)
2.x=6(根号下10的X次方=10000,10的X-2次方=10的4次方,x=6)
1年前
maggiel 共回答了150个问题 | 采纳率
1.x=2
2.x=7
4.x=1
1年前

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x-7/4-5x-8/3=1
-4x=1+8/3+7/4
x=-65/48
不生不灭 我的理解是 不在六道中守生 所以 没有六道中的生灭 但是..
不生不灭 我的理解是 不在六道中守生 所以 没有六道中的生灭 但是..
不生不灭 我的理解是 不在六道中守生 所以 没有六道中的生灭 是一种本源的 恒久不变的状态 是我们自性的状态
但是最近有人跟我解释说 不生不灭 其实也生也灭 只是速度太快 感觉不到 还引用经文 “当处出生,随处灭尽” 加以佐证.这如果是一般人说的 我会嗤之以鼻 但是这种解释好像是出自一位德高望重的法师 我迷惑了 请明白的给个最终解释
我重新强调一下
我的理解和法师所讲不一致
而且这次我确实认为我是没错的
我只是想让大家帮我解决这个疑惑
请不要文不对题的胡乱回答谢谢
glcc1年前1
hunterzkin 共回答了17个问题 | 采纳率76.5%
您说的是不生不灭,不生当然不灭,但是您举的例子却是有生有灭,有生当然有灭,这不冲突啊.
我不知道这句经文出自何处,建议您先看到原文再说,以免断章取义.
经文如下:
阿难.汝犹未明一切浮尘,诸幻化相,当处出生,随处灭尽.幻妄称相,其性真为妙觉明体.如是乃至五阴六入,从十二处,至十八界,因缘和合,虚妄有生,因缘别离虚妄名灭.殊不能知生灭去来本如来藏.常住妙明,不动周圆妙真如性.性真常中求于去来迷悟生死,了无所得.
它说的并不是人的生灭,而是幻相的生灭,只有到了佛菩萨的境界才能看到物质的生灭,由于速度太快,人看不到,这和您说的是两回事.
给我六道初中英语单选题(要冀教版的)
qiqihello19821年前1
wsj1604 共回答了14个问题 | 采纳率85.7%
初中英语总复习精选单选题100集
1 What do you think ______solve the problem ?
A.you can do B.can you do C.you can do to D.can you do to
2 In the past he often made his sister___, but now he is often made __by his sister.
A.to cry; to cry B.cry; cry C.to cry; cry D.cry; to cry
3 The teacher told us that the sun ____in the east.
A.rises B. rose C. raises D.raised
4 He lives in a village _____there are a lot of trees.
A. there B. where C.that D.which
5 He ________ Alice for ten years.
A. married to B.has married to C.has married D.has been married to
6 We need fifteen more people _____our team to do the job.
A.but B.except C.as well D.besides
7 They won`t allow us ________ at this beach.
A.swimming B.to swim C.swam D.swim
8 Is this factory ______you visited last week?
A.that B.where C.the one D.in which
9 The reason ___he was absent from the meeting was ___his car broke down on the way.
A.that; because B.why; that C.that; that D.for; that
10 Is the river_____ through that town very large?
A.which flows B.flows C.that flowing D.whose flows
11 The teacher told me that the students I wanted to see were seen___ football on the playground just now.
A.playing B.to be playing C.play D.to play
12 The red rose is the only one _____I really like.
A.which B.who C.that D.whom
13 All the apples _____ fell down were eaten by the pigs.
A.those B.which C.what D.that
14 Don`t forget the day ______you were received into the Youth League.
A.when B.that C.at which D.where
15 I prefer______ at home to _____outside.
A.staying, playing B.to stay, play C.staying, play D.to stay, playing
16 The box is _____what I saw in the shop.
A.same as B.the same like C.the same that D.the same as
17 The pen ______she writes letters is broken.
A.which B.that C.with which D.by which
18 Would you like to ______us in our discussion.
A.take part in B.join C.taking part in D.joining
19 I`m sure the red team will ______the game .
A.win B.beat C.defeat D.succeed
20 Ahead of me I saw a woman ____I thought was my aunt.
A.who B.whom C.of whom D.whose
21 _____your help, everything in the room is in good order now.
A.Since B.Because C.thanks for D.Thanks to
22 He is known to the world and has a lot of friends_______
A.in and out of abroad B.at home and abroad
C.at home and at abroad D.in home and out of abroad
23 ---Are you going there with them ? ----If you go,__________.
A.I also go B.so do I C.so I will D.so will I
24 -----The flower is beautiful. ---____________
A.So is it B.So it is C.It is so D.So it is
25 The number of people invited ____fifty, but a number of them _____absent.
A.were; was B.was ; was C.was; were D.were; were
26 We haven`t had any success _______
A.before long B.so long C.by far D.so far
27 Travellers ____our country enjoy the beautiful sights in Beijing, Hangzhou and
many other places of interest.
A.for B.to C.till D.by
28 If a man ______succeed, he must work as hard as he can.
A.will B.should C.is going to D.is to
29 ---I am sorry I didn`t do a good job. ---Never mind. ___ you have tried your best.
A.Above all B.In all C.At all D.After all
30 The best way to make sure that you can keep fit is to ____healthy eating habits.
A.find B.create C.develop D.prepare
31 We have spent _____money on English books .
A.a great deal of B.a good many C.a plenty of D.a number of
32 _______met, it won`t be easily forgotten.
A If only B.When if C.Once D.Once you were
33 The differences_____ these two pictures _____ colour are easy to see.
A.in, of B.from, of C.between ,in D.of ,in
34 You should put_____ “s” at the end of this word.
A.a B./ C.an D.the
35---What`s ______population of China ? ---China has____ population of 1.2 billion.
A.a; the B.the; a C./;/ D.the; the
36 It`s _______here. We can`t work long hours here.
A.very much cold B.much cold C.much too cold D.too much cold
37 _______terrible weather we`ve been having these days!
A.How a B.What a C.How D.What
38 ----Have you decided when_____? -----Yes, tomorrow morning.
A.will you leave B.to be leaving C.are you leaving D.to leave
39 The song ____My heart will go on is liked by the young people.
A.call B.calling C.called D.to call
40 Train services are now back to ______after three days of typhoon.
A.usual B.common C.ordinary D.normal
41 He is the best ____English in our class.
A.at B.in C.for D.to
42 The policeman caught hold of the thief and hit him ____ head.
A.in the B.on his C.on the D.in his
43 Did John hit Bob _____eye ?
A.in the B.on the C.in his D.on his
44There is ____ interesting ____ today`s newspaper.
A.anything …in B.nothing. .in C.something. .on D.nothing.. on
45 Has your teacher given you any advice______ your study?
A.in B.to C.on D.with
46 It`s bad manners to laugh _____ others when they are _____ trouble.
A.at ,in B.over ,at C.with ,on D.to, with
47 Betty doesn`t have enough money to buy that coat. It`s very ___.
The price is too_____.
A.high, high B.expensive, expensive C.expensive, high D.high, expensive
48 This kind of glasses manufactured by experienced craftsmen ______comfortably.
A.wearing B.wear C.wears D.is worn
49 The diamond is _______.
A.very valuable B.of great value C.great value D.A or B
50 Behind the dancer there was a woman _______a large diamond ring.
A.carrying B.dressing C.wearing D.having
51 The young teacher who has a ____face can make his classes ____and interesting.
A.lovely, lively B.lovely, lovely C.likely, friendly D.uglily, lively
52 They were still _____their friends after their child`s long illness.
A.in debt to B.in the debt to C.in debt with D.in the debt with
53 _______, my brother passed the exam.
A.To my great joy B.To my great surprised C.With my joy D.With my surprise
54 I am all ears, ____,I am listening to you with all attention.
A.in another words B.in the other words C.with other words D.in other words
55 He started early _______he could get there before nine.
A.in order that B.because C.so as to D.in order to
56 As you know,whether the person will be elected president is matter of ___interest.
A.general B.common C.ordinary D.mostly
57 I _____ by his story that he made up.
A.was taken on B.was taken out C.was taken in D.am taken in
58 He didn`t go into detail on the subject ,he spoke ______.
A.in general B.in particular C.in common D.in short
59 We designed the machine _____the purpose _______production.
A.for, of increasing B with, of increasing C. for, to increase D. A or B
60 Hospital doctors don`t go out very often as their work ____all their time.
A. takes away B. takes in C. takes over D. takes up
61 We offered him our congratulation ____his passing the entrance exam.
A. on B. for C. with D. at
62 My mother _____classical music while I am ____rock music.
A. is fond of, in B. likes, like C. is interested in; into D. interests; enjoy
63 We each _____ strong points and each of us on the other hand _____weak points.
A. have, have B. has, have C. has, has D. have, has
64 He is one of the students who, I am sure, always do ____ best.
A. his B. one`s C. my D. their
65 The police ___determined to bring back the missing boy when his family____
almost given hope.
A. is, has B. are, have C. are, has D. is, have
66 More than one girl ____ late for class this morning.
A. are B. is C. was D. were
67 Many a student _____ in the exam.
A. have failed B. had been failed C. has failed D. will be failed
68 What he says and what he does _______.
A. is not agree B. are not agree C. does not agree D. do not agree
69 Not only politics but also English is important. In other words , ___is important.
A. English, as well as politics B. English as well as politics
C. both politics and English D. politics, as well as English
70 It was at the very beginning__ Mr.Smith made a decision __we should send for a doctor.
A. what, that B. that, which C. which, that D. that, that
71 On the way back home from the ball, she suddenly found her necklace____.
A missed B losing C gone D be stolen
72 He didn`t go to the party not ______the time but _____he was ill.
A. because of, because B. because, because
C. because, because of D. because of, because of
73 The teacher gave me a piece of paper________.
A. to write on B. to be written on C. to write in D. to be written
74 I can`t believe he could jump _____high.
A. very much B. such C. that D. this
75 ----The boys are not doing a good job at all, are they? ----_____________.
A. I guess not so B. I don`t guess so C. I don`t guess D. I guess not
76 The magazine is ______reading, so he advised me ____it.
A. well worth; to buy B. very worth; buying
C. worthing , buying D. worthy, to buy
77 She is on a special ____to lose ____weight.
A.food; her B.food;/ C.diet; her D.diet;/
78 Jenny_____ a rich man. She has____ him for 5 years.
A.married with; married with B. married; married
C. married to; been married D. married; been married to
79 I am _____hungry. Give me _______of milk.
A.a bit;a little B.not a little;a bit C.little;a lit D.not a little; a little
80 A good friend is someone _____makes you ______.
A. which; happy B. who; happily C. who; happy D. whose; happily
81 He was about ____when suddenly the telephone rang.
A. to leave B. to starting C. leaving D. setting off
82 This task is _____difficult for us. We need ______people.
A. much too; another three B. too much; other three
C. much too; more three D. too much; three more
83 He seems to ______to Jane. He knows her well.
A. have been introduced B. be introduced C. have introduced D. introduced
84 This is a film ______Spielberg used real actors instead of stunt men.
A. which B. whose C. in which D. of which
85 He ____much of his success and happiness _____his wife and children.
A. thanks;to B. owes; to C. owns; to D. thinks; highly of
86 He will never forget the days ______he spent with you in Japan.
A. when B. that C. on which D. in which
87 Which sentence is incorrect ?
A. I feel interested in classical music B. I take interest in classical music
C. I am not into classical music D. I don`t fond of classical music
88 No one likes _______in _____public.
A. to be laughed at; the B. laughing at; the
C. being laughed at; / D. to be laughing at; /
89 We are considering _____a sports meet next month.
A. to hold B. holding C. to be held D. as holding
90 Which sentence is incorrect?
A. He devoted himself to the work of children`s health care.
B. He is devoted to his work.
C. He devoted all his life to work hard in people`s interests.
D. He is determined to make more money for his family.
91 He doesn`'t like classical music and_______ I.
A. so do B. nor do C. or do D. nor am
92 Friends should ______happiness and sorrow _____each other.
A share, with B solve, with C share, from D share, to
93 ---I missed the first part of the film .It was really a pity.
---You ________home half an hour earlier.
A. should have left B. must have left C. should leave D. must leave
94 The storm died away at last with the golden waves ____the shore in peace.
A. beaten B. beat C. to beat D. beating
95 The Whites are ___holiday ,but I don`t know where they have gone __their holidays.
A. in ,for B. on ,for C. for, in D. at, on
96 The river ____are covered with trees is very long.
A. which banks B. of which banks C. whose the banks D. the banks of which
97 She likes to use words ______clear to her.
A.of which the meaning B of which meaning
C whose of meaning D meaning of which
98 The price of this washing machine has been increased ____15%.
A. up B. to C. by D. from
99 _____someone`s health, you raise your glass.
A. Drink to B. To drink to C. If you drink D. If drink to
100 Please ______me about the interview____ I forget.
A. remind; in case B. remember; in case
C. remember, in case of D. remind of; in case of
参考答案:
1-5 CDABD 6-10 DBCBA 11-15 ACDAA 16-20 DCBAA
21-25 DBDBC 26-30 DBDDC 31-35 ACCCB 36-40 CDDCD
41-45 ACABC 46-50 ACCDC 51-55 AAADA 56-60 ACADD
61-65 ACDDB 66-70 CCDBD 71-75 CAACD 76-80 ADDBC
81-85 AAACB 86-90 BDCBC 91-95 BAADB 96-100 DACBA
二元一次方程组的计算我需要六道,可以稍微难一点,但不要实际应用,只是单纯的方程组局算,要配有答案,
picachu001年前2
杯子16号 共回答了24个问题 | 采纳率87.5%
注意用方程组解决哦
1.有一筐苹果分给若干小朋友,如果每位小朋友分到6个,那么还缺6个苹果;如果每位小萼片能够有分给5个,那么多余5个苹果,请你算算,有多少小朋友?有多少个苹果?
2.一个两位数.个位数字与十位数字的和为9,若交换个位数字与十位数字的位置,则所得的数比原数大9,求这两个数?
3.甲乙两人从相距28千米的两地同时出发,相向而行,经过3时30分相遇,若乙先出发2时,然后甲再出发,则在甲出发后2时45分两人相遇,求甲,乙两人的速度?
4.方程2x+3y=11的正整数解是___________
5.某企业将甲,乙两种不同性质和不同用途的存款共20万元存入银行,假设甲种存款的年利率为5.5%,乙种存款的年利率为4.5%,该企业一年可获得利息9500元,求甲,乙两种存款各是多少万元?
6.(中国古代数学问题)有人问某男孩:你有几个兄弟姐妹?男孩回答说:”我有几个兄弟就有几个姐妹.再问他妹妹相同的问题,妹妹回答说:”我的兄弟是我的姐妹的2倍.问这家共有兄弟和姐妹各几人?
注意乘用”*”表示,除以用”/”表示
问题补充:今天8:00之前回答出,求求你们,帮帮我
顺便答案也这你
1.设有小朋友x,苹果y个.依题意得:
(1)6x-6=y
(2)5x+5=y
解得:x=11,y=60.
经检验,符合题意.
答:有11个小朋友,60个苹果.
2.设十位数为x,个位数为y.依题意得:
(1)x+y=9
(2)(x+10y)-(10x+y)=9
解得:x=4,y=5.
经检验,符合题意.
答:十位数为4,个位数为5.
3.设甲的速度为每小时x千米,乙的速度为每小时y千米.依题意得:
(1)3.5x+3.5y=28
(2)2y+2.25x+2.25y=28
解得:x=3,y=5.
经检验,符合题意.
答:甲的速度为每小时3千米,乙的速度为每小时5千米.
4.(1)x=1,y=3.(2)x=4,y=1.
5.设甲存款为x万元,乙存款为y万元.依题意得:
(1)x+y=20
(2)5.5%x+4.5%y=0.95 (注:9500元=0.95万元)
解得:x=5,y=15.
经检验,符合题意.
答:甲存款为5万元,乙存款为15万元.
6.设这家有兄弟x人,姐妹y人.依题意得:
(1)x-1=y
(2)y-1=x/2
解得:x=4,y=3.
经检验,符合题意.
答:这家有兄弟4人,姐妹3人.
春之怀古阅读答案,今年基础训练上的六道题,和以前的不一样,谁再发以前的我宰了他
春之怀古阅读答案,今年基础训练上的六道题,和以前的不一样,谁再发以前的我宰了他
第一段画横线部分是按什么顺序写的?其表达作用是什么?
第二段主要写的是哪几种景物?
“满塘叶黯花残的枯梗抵死苦守一截老根,北地里千宅万户的屋梁受尽风欺雪扰,犹自温柔地抱着一团小小的空北地里千宅万户的屋梁受尽风欺雪扰,犹自温柔地抱着一团小小的空虚的燕巢。”这句话运用了什么修辞方法?其表达作用是什么?
第三段中“攻陷”“控制”两个词各表达出了什么?
请用自己的话说说第四段讲了一个怎样的故事。
文中哪句话直接点明了文题“春之怀古”的含义?表达了作者怎样的思想感情?
zz中1年前2
xx6606 共回答了16个问题 | 采纳率100%
顺序:从上到下,由外到内,从大到小,由远到近. 表达效果:显得条理清晰.表达出春天的无处不在,春无私的奉献给了世间的一切.云,雷,雨,杜鹃,杜鹃花,柳絮.拟人,生动形象的表达出了对根要发芽,燕子回归的企盼.
数学因式分解六道(5)一.0.25+2xy-x^2-y^2二.x^4-x^2+4x-4三.a^4-4·a^2+12a-9
数学因式分解六道(5)
一.0.25+2xy-x^2-y^2
二.x^4-x^2+4x-4
三.a^4-4·a^2+12a-9
四.x^4-6·x^3+9·x^2-16
五.a^2+2ab+b^2-ac-bc
六.m^2+2mn+n^2-p^2-2pq-q^2
creat-bright1年前2
米米蓓 共回答了14个问题 | 采纳率85.7%
1:( 0.5+x-y)(0.5-x+y)
2:(x^2+x-2)(x^2-x+2)
3:(a^2+2a-3)(a^2-2a+3)
4:[x(x-3)+4][x(x-3)-4]或者(x^2-3x+4)(x-4)(x+1)
5:(a+b)(a+b-c)
6:(m+n+p+q)(m+n-p-q)
小朋友.你是不是不好好学习啊
题都很简单啊.第4个拿不准.有点忘了.
你的这些题主要用了2个公式.记住就好了
第一个:(a+b)^2=a^2+2ab+b^2 或者 (a-b)^2=a^2-2ab+b^2
第二个:a^2-b^2=(a+b)(a-b)
六道英语小题,1.Mary quietly____ (fill) the basket with good things
六道英语小题,
1.Mary quietly____ (fill) the basket with good things for the poor children
2.A friend of____ (me) said that he would like to help me
3.Many people including my parents____ going to be at the meeting
A.was B.are C.were
4.After five months’____ ,I was able to bring him home
A.train B.trained C.training
5.That cat is blind____ both eyes’
A.in B.on C.at
6.He____ in an accident.Then he became a____ man
A.is hurt;disable B.was hurt;disabled C.is hurt;disabled
gzcheny1年前5
双枪dd婆 共回答了14个问题 | 采纳率85.7%
fills
mine
B
C
A
B


保证准确率~

新概念英语2 六道单选题 1.She tells me___my pictures are good or not.A.
新概念英语2 六道单选题
1.She tells me___my pictures are good or not.
A.whether B.that C.if D.unless(答案选c,是不是应该选a?)
2.They sang songs by the campfire.They sang songs___the campfire.
a.close b.near c.besides d.at (答案选B,为什么不选A,是不是少个to?)
3.The boys had put out the campfire.The fire wasn't____.
a.switched on b.on fire c.on d.alight(解释B和D的区别,
4.They crept into their tent,so they___.
a.made a lot of noise b.ran quickly c.were very quiet d.were very noisy(crept和声音有什么关系?
5.There is always a car outside his gate.___he can't get into his garage.
a.For this b.Because c.That's why d.Because of(选c,a为什么不行?)
6._____of them has been turned to stone.
a.No one b.Not one c.No d.Even one(答案选b,是不是应该选a)
蝉变1年前2
小小宋1 共回答了20个问题 | 采纳率75%
1.a.因为 whether.+or not
2.答案a少个to.
3.b是“着火”的意思.d.alight(着火的,照亮的)才和题意相符合.
4.creep有“蹑手蹑脚”的意思,和c(很安静)相匹配.
5.选c.只有c.(那就是为什么)是表示原因或者理由的,说明他为什么不能把车开进去.
6.d.最符合语法.a.no one可以做独立主语,后面不应跟of them.
高中生物奥赛题目求高手解答六道判断题,请判断并解释原因.谢谢!1、在原核生物细胞中,DNA常与组蛋白结合,真核细胞中的D
高中生物奥赛题目求高手解答
六道判断题,请判断并解释原因.谢谢!
1、在原核生物细胞中,DNA常与组蛋白结合,真核细胞中的DNA常与多胺结合.
2、DNA溶液的黏度极高,这是因为DNA分子具有高度的对称性.
3、在稀碱溶液中,DNA和RNA被迅速水解为核苷酸.
4、DNA的双螺旋结构与蛋白质α-螺旋相似,氢键是其主要的稳定因素.
5、DNA双螺旋中,戊糖环平面与碱基对平面垂直.
6、真核生物基因的共同特点是都含有“内含子”.
os-x1年前2
ebe6 共回答了21个问题 | 采纳率90.5%
1、错 真核生物中DNA和组蛋白结合形成染色体
2、对 高度的对称性和紧密的刚性结构一旦遭到破坏,DNA分子变性,那么粘度将会下降
3、错,说起来核酸拥有磷酸基团是会和碱反应,但是DNA是双螺旋结构,稀碱下比较稳定,RNA是直链,会迅速水解.
4、对 可以说相似但不是完全相同,DNA双螺旋是2条链,蛋白α-螺旋只是一条链而已,氢键在其中都起着不可或缺的作用.
5、对 戊糖平面和DNA双螺旋的长轴平行,而碱基平面几乎和长轴垂直.
6、对 含有内含子确实是真核生物基因的特点之一,从而保证了基因的多样性.
六道超大数学题 都是初二一次函数....谁来解
昨夜星辰AND黄山1年前2
tuzhixiong 共回答了17个问题 | 采纳率23.5%
什么题
一道选择加六道因式分解 已知,7的24次方-1可被40至50之间的两个数整除,则这两个数是( )A
一道选择加六道因式分解
已知,7的24次方-1可被40至50之间的两个数整除,则这两个数是( )
A 41,48 B45,47 C 43,48 D41,47
分组分解法(因式分解)例子2x的三次方,是2×x的三次方,不是2的三次方×x的三次方
1.a的三次方+3a²+3a+2
2.2x的三次方-x²z-4x²y+2xyz+2xy²-y²z
十字相乘法(因式分解)
(2x²-3x+1)²-22x²+33x-1
2.(x²-1)²-(x²-1)(x+5)
3. (4x²+1)²-16x²
4. (x²+x)²-8(x²+x)+12
地瓜小王子1年前1
千之草 共回答了29个问题 | 采纳率93.1%
724-1=(712+1)(76+1)(73+1)(73-1),
=(712+1)(76+1)(7+1)(72-7+1)(7-1)(72+7+1),
=(712+1)(76+1)×8×43×6×57,
=(712+1)(76+1)×48×43×57,
因此可被40至50之间的两个整数整除的数是48,43.
有一份选择题试卷共六道小题.其得分标准是:一道小题答对得8分,答错得0分,不答得2分.某同学共得了20分,则他(  )
有一份选择题试卷共六道小题.其得分标准是:一道小题答对得8分,答错得0分,不答得2分.某同学共得了20分,则他(  )
A. 至多答对一道小题
B. 至少答对三道小题
C. 至少有三道小题没答
D. 答错两道小题
我不想分开1年前0
共回答了个问题 | 采纳率
六道典型应用题1、铺一条公路,3人5天可铺180米.照这样的速度,240人80天才能全部铺完.现在由于工作需要,调走总人
六道典型应用题
1、铺一条公路,3人5天可铺180米.照这样的速度,240人80天才能全部铺完.现在由于工作需要,调走总人数的六分之一,而每人每天的工作效率却提高了三分之一,这样,全部铺完可提前几天铺完?
2、甲、乙两艘轮船同时从相距644千米的两个码头出发,相向而行.8小时后两船还距380千米,甲船每小时航行15千米,问乙船每小时航行多少千米?
3、一辆汽车和一辆摩托车,同时从甲城开往相距374.4千米的乙城.当摩托车到达乙城时,汽车离乙城还有44.2千米.已知汽车每小时行63.5千米,求摩托车比汽车每小时多快了多少千米?
4、有浓度为8%的盐水40千克,要配制浓度为20%的盐水100千克,需加盐和水各多少千克?
5、有两块合金,第一块含金量为90%,第二块含金量为80%,现在要得到含金量为82.5%的合金240克,应从每块合金中各取多少克?
6、汽车从A地到B地,如果每小时比规定的速度快10千米,就提前12分钟到达,如果每小时比规定的速度慢4千米,就迟6分钟到达,求A、B两地间的距离.
wyw19861年前1
最终解决 共回答了23个问题 | 采纳率87%
1.一人一天铺180/5/3=12m
总量=240*80*12=230400m
调走后还剩240*5/6=200人
工作效率提高到12*(1+1/3)=16m/天
每天200*16=3200m
230400/3200=72天
80-72=8天
提前8天
2.设乙船每小时航行x千米
644-15*8-8x=380
x=18
乙船每小时航行18千米
3.设摩托车行驶x小时到达乙城
63.5x+44.2=374.4
x=5.2
摩托车每小时行驶374.4/5.2=72km
72-63.5=8.5km
4.设加xkg盐
40*8%+x/100-40-40*8%+x=0.2
x=10.2
则加水49.8kg
这题对错我也不太清楚
六年级一元一次方程的题!要六道!
六年级一元一次方程的题!要六道!
一元一次的方程!今天就要!
3377881年前4
xiaozhi_046 共回答了11个问题 | 采纳率90.9%
x+1=2
2x+2=4
3-2x=1
5x-5(1-x)=10
1+x+3(x+1)=3
3x+1=4x+2
x+1=2
2x+2=4
3-2x=1
5x-5(1-x)=10
1+x+3(x+1)=3
3x+1=4x+2
求助六道外语题望得到解释6 He has formed the habit of sleeping with the w
求助六道外语题望得到解释
6 He has formed the habit of sleeping with the windows left ________.
a open b opened c opening d to open
key a
7The home improvements have taken what little there is _______my spare time .
a from b in c of d at
key c
8 ----Do you mind if Edward rides in your car?
-----Yes,I do .I’ll be glad to take ________but Edward.
Key b
9 ---Did you criticize her for her careless?
---Yes,but I __it.
a would rather not do b would rather not have done
c shouldn’t do d had better not do
key b
10 We all write ________,even when there`s not much to say.
a now and then b by and by c step by step d more or less
key a
11We didn`t plan our art exhibition like that but it ______very well.
a went on b tried out c worked out d carried on
key c
11 It is the ________of foreigners to change gifts at Christmas.
A habit b rule c custom d hobby
睡晕天1年前1
山田正人 共回答了12个问题 | 采纳率91.7%
6. leave +形容词 表示让...维持某种状态
9. 是虚拟语气的用法 以及rather的用法
原文选项要表达的意思的是 我宁愿我没有做过
10 now and then 是偶尔,有时的意思
step by step 一步一步的
by and by 不久
more or less 或多或少,有点儿;大约
11.go on 继续下去;(时间)过去;发生
try out 试验
work out想出;解决;理解;发展
carry on 继续
work out比较适合语境
12 .C是一种风俗习惯 固定用法
高分求帮忙做六道数字信号处理的填空题,紧急要的.
高分求帮忙做六道数字信号处理的填空题,紧急要的.
1,n=64按时间抽取fft运算流图有()个蝶形
2,数字系统因果稳定要求全部极点都在();收敛域为()
3,对于线性相位FIR滤波器来说,群延迟是()
4,如果序列x(n)的 z变换的极点有两个z1和z2.当x(n)为右边序列时收敛域是();当x(n)为左边序列时收敛域是()
5时域连续则频域(),时域离散化会造成频域()
6,巴特沃斯滤波器平方幅度的极点是镜像的,如果s为极点(s不在坐标轴或单位圆上)则-s也是极点,另外两个极点是()和()
chenzhubang1年前1
h76122 共回答了18个问题 | 采纳率88.9%
1.总共logM64级(M是底数),基取M时,对应的蝶形个数不同.例如若M=2,则有8个蝶形.
2.数字系统因果稳定极点在单位圆内,收敛域是一个圆外区域|z|>a,且收敛于必须包含单位圆在内,即:0
这六道英语智力题如何做?1、There is a word of eight letters.If you take a
这六道英语智力题如何做?
1、There is a word of eight letters.If you take away five letters,only one is left.What's the word?________
2、What has three hands but only one face?_______
3、Which person do you always take your hat off to?_______
4、The more there is of it,the less you see.What is it?_______
5、Tom,George,Sally and Ann are brothers and sisters.I don't know how old each of them is.I only know that one of them is eighteen,one is fifteen,one of the boys is sixteen and one of the girls is seventeen.I also know that Tom is older than Sally,but Ann is younger than her.How old is Tom?How old is George?How old is Sally?How old is Ann?___________________
6、What grows larger the more you take it?_______
Amanda19841年前1
梦幻小五 共回答了11个问题 | 采纳率100%
1.everyone
2.A clock.
3.The barber
4.Fog或Darkness
5.Tom is eighteen.George is sixteen.Sally is seventeen.Ann is fifteen.
6.A hole(洞).
乘坐UFO的外星人是六道中的哪一道?
大清江山1年前1
失主棵 共回答了21个问题 | 采纳率95.2%
UFO的太空人你要是能看到他的形状,就是有物质身体的就是人道啊
六道数学题,急,快
xiaozibushuai1年前2
重返mm1 共回答了23个问题 | 采纳率100%
1+1=2
2+2=4
4+4=8
8+8=16
16+16=32
32+32=64
一共六道,请笑纳!
六道专四选择题1. the teacher tried to __ her ideas into the childre
六道专四选择题
1. the teacher tried to __ her ideas into the children's minds.
a insimate b penetrate c infiltrate
选C为啥B不能选
2. on holidays, we like to go to the forest cabin and let it all ___
a hang together b hang around c hang on d hang out
3.a translator shouldn't __ his own idea into what he's translating.
a interfere b infringe c intrude d meddle
为啥选c
4. the policeman___ business : he really will shoot us if we try to escape
a means b denotes c signifies d indicates
5.one man's ___ haven for weath is another's unproductive barbarons relie.
a. mystical b abstract c arcane d supernatrual
6. the people had to gather up their few___ and esacped abroad
a estate b property c assets d possession
选C.为啥不选B啊
谢谢.鞠躬
他爱上他1年前1
tongjinliang 共回答了16个问题 | 采纳率100%
C是在本题指思想上~而B一般指物体穿透另一物体
2放松~hang out
3intrude into 强加于~
4A 严肃认真
5很复杂
6C有价值的东西 B是财产多为无形的屋子车子等 拿不动~要逃出国外了~
这六道题有人会吗,会的发图过来,
孟雨tuotuo1年前0
共回答了个问题 | 采纳率
一元二次方程配方法六道求解x²+10x+9=0x²-x-7/4=03x²+6x-4=04x²-6x-3=0x²+4x-9
一元二次方程配方法六道求解
x²+10x+9=0
x²-x-7/4=0
3x²+6x-4=0
4x²-6x-3=0
x²+4x-9=2x-11
x(x+4)=8x+12
huilu1年前1
青尘皓虹 共回答了9个问题 | 采纳率88.9%
x" + 10x + 9 = 0x" + 10x + 25 - 16 = 0( x + 5 )" - 4" = 0( x + 5 + 4 )( x + 5 - 4 ) = 0( x + 9 )( x + 1 ) = 0x1 = -1x2 = -9 x" - x - 7/4 = 0x" - x + 1/4 - 8/4 = 0( x - 1/2 )" - 2 = 0( x - 1/2 - √2 )(...
着急,快甲乙两人参加只是竞赛,有十道不同的题目,其中六道选择题,四道判断题,甲乙各抽一道.【1】甲抽到选择题,乙抽到选择
着急,快
甲乙两人参加只是竞赛,有十道不同的题目,其中六道选择题,四道判断题,甲乙各抽一道.
【1】甲抽到选择题,乙抽到选择的概率是多少?
【2】甲乙两人中至少一人抽到选择题的概率是多少
第一个问写错了,是乙抽到判断
lianyan0001年前4
且听夏吟 共回答了15个问题 | 采纳率100%
1、甲抽题时共10选择6,3/5;
乙抽题时共9选择5,5/9.
事件概率=3/5*5/9=1/3.
2、事件的对立事件是B“甲乙都抽到判断题”.
同1中方法可求得P(B)=2/15;
所以该事件概率=1-2/15=13/15
谁给六道二元一次方程组 4道三元的计算题
LILY冬冬1年前1
nanfeng1979 共回答了14个问题 | 采纳率92.9%
2X+Y=15 3X+2Y=25
高一物理竖直上抛运动的计算题(六道中的第三道)
高一物理竖直上抛运动的计算题(六道中的第三道)
耍球用一只手抛三只球,
常常使两球在空中,
一球在手里,
球都上升1.25米,
球连续两次抛出所隔的时间(g=10m/s方)
星期八嫁nn1年前2
三梦30 共回答了23个问题 | 采纳率82.6%
球上升1.25米.那你很容易就可以算出每个球在空中运动的时间是1秒,不要说你不会算.
因为老是有两个球在空中一个球在手里,那就是一秒内要抛出两个球.所用时间间隔就是0.5秒了
六道英语的填空题用所给短语的适当形式填空a lot what's wrong be absent have a rest
六道英语的填空题
用所给短语的适当形式填空
a lot what's wrong be absent have a rest be over after supper
1.My father often reads newspaper _______.
2.Who _______today?
3._______with your watch?It doesn't work.
4.We work of a long time.Let's _______.
5.The present is very good.Thanks _______.
6.The classes _______at four o' clock in the afternoon.
flappyheart1年前3
ashua 共回答了14个问题 | 采纳率78.6%
1.after supper
2.is absent
3.What's wrong
4.have a rest
5.a lot
6.will be ove
估算(一共六道题)402+7590≈ 5789-298≈ 69×41≈ 81.35÷9≈3.51+6.52+9.01+0
估算(一共六道题)
402+7590≈ 5789-298≈ 69×41≈ 81.35÷9≈
3.51+6.52+9.01+0.95≈
davidxu061年前3
SY_Yin 共回答了15个问题 | 采纳率93.3%
402+7590≈8000 5789-298≈5500 69×41≈2800 81.35÷9≈9
3.51+6.52+9.01+0.95≈20
有关三年级下册小数的题要六道
fengyanjun88361年前1
简色123 共回答了17个问题 | 采纳率94.1%
1.1*2.2
2.3*12
3.7+23.4
2.09-1.3
11+3.4
5*2.3+24.1
中学七年级六道英汉互译1.请你告诉Jane这件事(tell)2.不要忘了把吃的带走3.他每天都忘记带英语书(多种表达方式
中学七年级六道英汉互译
1.请你告诉Jane这件事(tell)
2.不要忘了把吃的带走
3.他每天都忘记带英语书(多种表达方式)
4.请把这些面包带给你的同学
5.请告诉他野餐的事
6.去西山野餐
很急很急很急很急啦
keven21c1年前1
袍子 共回答了20个问题 | 采纳率85%
1.Would you please tell like some more about it.
2.Don't forget to eat away.
3.Every day he forgot to bring English book.
4.Please put the bread to your classmates.
5.Please tell him the picnic.
6.To xishan picnic.
六道英语题(根据汉语意思完成句子,每空一词)
六道英语题(根据汉语意思完成句子,每空一词)
一、我妈妈说我晚饭尽量少吃肉.My mom said that I should___ ___eat less meat for dinner.二、乘船比乘车更有趣.Taking a boat is___ ___ ___fun than___a bus.三、你的申请表务必准时上交.Your application form must___ ___ ___ ___ ___.四、史密斯先生去年戒烟了.Mr.Smish___ ___last year.五、很多学生昨天作了新的一年的打算.Many students___ ___ ___ ___ ___yesterday.六、当我稍大些的时候,我想为国际杂志写文章.I want to___for___ ___when I'm___ ___older.
请按顺序填空,并给出详细解析,
格兰猪1年前1
霆辉 共回答了12个问题 | 采纳率100%
一、try to
二、quite a few taking
三、be handed in on time
四、stopped smoking
五、这是几个空?如果是五个空的话,就是:made a new year's plan
六、write International Journal a little
希望能帮到你
在脑筋急转弯抢答比赛中,一共有六道题,规定答对一题得五分,答错一题扣八分,不答得零分.欣欣共得了12分,她抢答了几次,答
在脑筋急转弯抢答比赛中,一共有六道题,规定答对一题得五分,答错一题扣八分,不答得零分.欣欣共得了12分,她抢答了几次,答对几题,答错几题?
心都形象化了1年前1
599gtb 共回答了15个问题 | 采纳率93.3%
抢答了5次 答对了4次得20分 答错1次扣8分 总分12分

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