提问GRE数学题1.If M is the least common multiple of 90,196,and 300,which of the following is not a factor of (A)600 (B)700 (C)900(D)2100 (E)4900我能算出M=2^2x3^2x5^2x7^2,但不知如何算出factor of M;另外,为何每个质数取较大

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提问GRE数学题1.IfMistheleastcommonmultipleof90,196,and300,whichofthefollowingisnotafactorof(A)600(B)700(C

提问GRE数学题1.If M is the least common multiple of 90,196,and 300,which of the following is not a factor of (A)600 (B)700 (C)900(D)2100 (E)4900我能算出M=2^2x3^2x5^2x7^2,但不知如何算出factor of M;另外,为何每个质数取较大
提问GRE数学题
1.If M is the least common multiple of 90,
196,and 300,which of the following is not a factor of (A)600 (B)700 (C)900
(D)2100 (E)4900
我能算出M=2^2x3^2x5^2x7^2,但不知如何算出factor of M;另外,为何每个质数取较大指数相乘得最小公倍数?既然是最小公倍数为何不是取最小指数的相乘?
2.If n is a positive integer greater than
400,the remainder is 1 when n is divided by 5,6 or 7,what is the value of
我知道有个公式是y=kx+b,表示y除以x,商是k,余数是b.按照此思路如何解这道题?
3.If 10^50-74 is written as an integer in
base decimal notation,what is the sum of the digits in that integer?
4.v^*=v-v/3,if (v^*)^*=8,then v=?

提问GRE数学题1.If M is the least common multiple of 90,196,and 300,which of the following is not a factor of (A)600 (B)700 (C)900(D)2100 (E)4900我能算出M=2^2x3^2x5^2x7^2,但不知如何算出factor of M;另外,为何每个质数取较大
1.factor意思是M的因子.题目中的意思也就是说,下面那个数不能被M整除.你算一下,A不能.相除得73.5,选A
2.这道题,确定是一道填空题吗?还是选择题.
3.这道题的意思应该是说,将这个科学计数法表示的数写成一个普通的十进制表示的数字后,求这个数字各位数字(digit)的和是多少.你要能区分Number和digit的区别.number是一个数字,比如23就是一个number,而对于这个number来说,它的digits有2个,分别是(tens digit)十位数2和(units digit)个位数3.那下面你会算了吧.直接用那个50个0的数去见那个74呗,从最高位借1,然后结果里出现了48个9,一个2,一个6.所以sum=9*48+2+6=440
4.V=18 .V^*=(2/3)v,所以,再将此数带入进行计算,就是:(2/3)v-[(2/3)v-(2/3)v/(1/3)]=8,解出来,得V=18

楼主智商捉鸡,我笑而不语
算了还是太无聊了,帮你回答一下吧
1)最小公倍数,90:3.3.2.5。196:2.2.7.7;300:2.2.3.5.5.
所以最小公倍数2.2.3.3.5.5.7.7
600显然不是。因为10.10.6有3个2
2) 5,6 ,7三个互素,乘起来210再乘以2=420+1=421.想不懂逆过来想,某个数-1是他们的公倍数。

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楼主智商捉鸡,我笑而不语
算了还是太无聊了,帮你回答一下吧
1)最小公倍数,90:3.3.2.5。196:2.2.7.7;300:2.2.3.5.5.
所以最小公倍数2.2.3.3.5.5.7.7
600显然不是。因为10.10.6有3个2
2) 5,6 ,7三个互素,乘起来210再乘以2=420+1=421.想不懂逆过来想,某个数-1是他们的公倍数。
3)翻译一下,看不懂
4)x-x/3=8解除x=12=v^*=v-v/3,解出v=16
都是小学数学题目啊楼主,楼主小学就开始准备考GRE了,,,楼主你好像在某个回答说中国读书没多大意义啊,我也顺便说一句,真正的学习是不分国界的。只是语言不同,相互学习起来会有点阻碍。

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提问GRE数学题1.If M is the least common multiple of 90,196,and 300,which of the following is not a factor of (A)600 (B)700 (C)900(D)2100 (E)4900我能算出M=2^2x3^2x5^2x7^2,但不知如何算出factor of M;另外,为何每个质数取较大 求助一道gre数学题,请不会的千万不要乱回答,·if an integer is randomly selected from all positive 2-digit integers,what is the probability that the integer chosen has (a) a 4 in the tens place(b) at least one 4 in the tens place or th 这是一道GRE数学题,没明白,In a certain sequence of numbers,each term after the first term is found by multiplying the preceding term by 2 and then subtracting 3 from the product.If the 4th term in the sequence is 19,which of the following nu Today is November 12th.(对November 12th提问) It is January 12th.January 12th 划线提问 Today is november 19th 对november 19th 提问 提问 Today is June.20 th 提问几道GRE绿皮数学题P58The toll for a certain bridge is $0.15 or 1 token.Tokens are sold in packs of 40 for $4.00.The percenty save on 40 trips across the bridge if a token,rather than $0.15,is used to pay each toll与66又2/3比大小 答 按要求进行句型转换:My favourite season is winter(对winter提问)It's December 10th.(对Decenber 10th提问)I'm counting insects.(对counting insets提问) 一道GRE数学In a list of numbers,the first number is 3,the second is 4,and each subsequent number is the sum of all the proceeding numbers in the list.If the 20th number in the list is x,what is the 25th number in the list?A 7x B 16x C 32x D 35x E 1.把 He is going to wach TV.改成否定句 2.把 I’m going to school.改成一般现在时We’re going th is weekend。对划线部分提问ˉˉˉˉ September 10th is( Teachers' Day.)对括号提问.( ) ( )is September 10th? lily’s birthday is on september 15th画线提问【】【】is on september 15th? TODAY IS JUNE 10th用 june 10th提问用TODAY IS JUNE 10th回答 Lucy'S birthday is in (June 9th )提问 my birthday is (september 6th) 对括号内提问 Today is (October 7th)对括号中的提问______the_____today? tree-planting Day is (March 12th).括号部分提问