优课网
首页
数学
语文
英语
化学
物理
政治
历史
生物
首页
> 的值是()A.±6B.6C.D.-6-八年级数学
的值是()A.±6B.6C.D.-6-八年级数学
题目简介
的值是()A.±6B.6C.D.-6-八年级数学
题目详情
的值是( )
A.±6
B.6
C.
D.-6
题型:单选题
难度:偏易
来源:不详
答案
B
分析:根据如果一个非负数x的平方等于a,那么x是a的算术平方根,根据此定义即可求出结果.
解答:解:∵
表示36的算术平方根,
∴
=6.
故选:B.
点评:此题主要考查了算术平方根的定义,其中算术平方根的概念易与平方根的概念混淆而导致错误.
上一篇 :
计算:(1);(2)。-九年级数学
下一篇 :
Don’t be afraid of difficul
搜索答案
更多内容推荐
If the weather had been better, we could have gone outing. But it ____ all day.A.rainsB.has rainedC.
—What are you going to do this afternoon?—I am going to the cinema with some friends. The film ____
I ______ the TV series The Legend of Zhenhuan when my mom made a phone call to me.A.am watchingB.wat
---How can you keep slim as a mother of two sons?---I _______ in the gym for years.A.have worked out
23. The way the guests_____in the hotel influenced their evaluation(评价) of the service.A.treated B.w
I________ an important conference at 10 o’clock this Sunday morning.A.will have attendedB.will be a
A high-tech exhibition ________in the National Museum now. Let’s go and visit it.A.will be heldB.is
I hope you enjoyed the film last night.How on earth do you know I went to a film? I ________ you.A.w
My wife ______the night shift when my plane ______. That’s why no one is to meet me at the airport t
No one _______ the building without the permission of the policeman.A.is leavingB.will be leavingC.
He ___ speak on TV tonight.A.was toB.is toC.will beD.has-英语
No one knows if________that boy, but if________him, her parents will be disappointed. [ ]A. she will
—Alice, why didn’t you come yesterday? —I ___, but I had an unexpected visitor.A.had B.wouldC.was go
--- Hi, Grandma, why do you look so tired? --- I’m tired. I _______ the cleaning all morning.A.didB
I haven' t seen Mary these past few days. I m afraid she ____ herself for some time.A.isn'
I have _____ an eye _____ you now, so you do as you _____! A.left; over; have toB.to keep; on; were
I ___ to the hotel last night.A.reachedB.arrivedC.gotD.arrive-英语
—You may find the key to the math problem on page 107.—Ah, it's so simple. I wonder why I _____
The villagers _______ closing down the factory, but till now the local government hasn’t _______to i
The policeman came up to the house, whose door was open, _____ there for a while, and went in.A.to s
I wonder if she______us,but I think if she______us we will be able to complete the task ahead of tim
求下列各式中的未知数的值:(本题8分,每小题4分)(1)2x2-8="0"(2)-八年级数学
----I went fishing with my father last Saturday and we watched a funny cartoon at night. ----_______
--Our English teacher is back home from Britain now.--Yes, she _____there for just three months.A.ha
Is honesty the best policy? We _that it is when we are little.A.will teachB.teachC.are taughtD.will
How ______ you ______ with the new job?A.do, doB.do, get alongC.are, doingD.are, getting on-英语
You’ve failed to do what you _____ to and I’m afraid the teacher will blame you.A.will expectB.will
-- Daniel,why are you so late? We_______ you would be here an hour ago.--- Sorry. I _______ know you
计算-九年级数学
已知a+b=-8,ab=8,化简bba+aab=______.-数学
I have to go to work by taxi because my car _____ at the garage.A.will be repairedB.is repairedC.is
--- I’d like to buy the kind of cloth which _____ easily.--- Will this one ________?A.washes; doB.wa
Trust him please! When he _______ reading it, he will return the book to you on time.A.finishB.will
.You’ve failed to do what you ____________to and I’m afraid the teacher will blame you.A.will expect
----Why ? Where’s the key to the meeting room? ----Dear me! You ______it in the taxi!A.had never lef
-----Did Alan enjoy seeing his old friends yesterday?----- Yes, he did. He _____ his old friends for
Without this year’s Nobel Prize in physics winner Charles Kao’s idea of fibrotic(光纤的)communications,
--- ________ the class done most of the work? --- Yes, but the rest ___________ rather difficult.A.H
已知m为实数,则代数式m+3--m2-12-4m的值为()A.0B.-3C.3D.无法确定-数学
A: What’s the matter, Sara? You wear a sad look on your face. B: Oh, nothing much. As a matter of fa
So far this year we ________ a fall in house prices by between 5 and 10 percent.A.sawB.had seenC.hav
______ the plan means we must start from the very beginning. A.AbandonedB.AbandoningC.Being abandone
--What made your father throw up last night?--I think the large quantities of wine __________.A.wasB
The person we talked about ____ our school last week.A.visitingB.will visitC.visitedD.has visited-英
Unfortunately, his dog got __________ by the car.A.runs overB.ran overC.was run overD.run over-英语
计算:小题1:;小题2:-九年级数学
估算的值,在()A.在与之间B.在与之间C.在与之间D.在与之间-九年级数学
下面与是同类二次根式的是()A.B.C.D.2-1-九年级数学
当时,二次根式无意义.-九年级数学
My wife ______the night shift when my plane ______. That’s why no one is to meet me at the airport t
返回顶部
题目简介
的值是()A.±6B.6C.D.-6-八年级数学
题目详情
答案
解答:解:∵
∴
故选:B.
点评:此题主要考查了算术平方根的定义,其中算术平方根的概念易与平方根的概念混淆而导致错误.