百度试题 结果1 题目【题目】How many whole numbers less than 20 are divisibleA.0B.1C.2D.3 相关知识点: 试题来源: 解析 【解析】A 反馈 收藏
解析 D 正确答案:D 解析:小于81且不等于整数的平方(square)的正整数(positive whole numbers)有多少个?解:本题的正确答案是(D)。该题也就是问小于81的非完全平方数有多少个。小于81的完全平方数有1,4,9,16,25,36,49,64共8个,而小于81的正整数有80个,所以小于81的非完全平方数有80-8=72个。
The whole numbers less than 1000 that can be written as such a product are0×1×2, 1×2×3, 2×3×4, 3×4×5, 4×5×6, 5×6×7,6×7×8, 7×8×9, 8×9×10, and 9×10×11, In all, that's 10. 有多少小于1000的整数可以写成3个连续整数的乘积( ). A.10 B.11 C.15...
D. four相关知识点: 试题来源: 解析 B Since 02=0 and 12=1, there are two such whole numbers . 小于10的整数中,有多少是它们本身的平方( ). A.一个 B.两个 C.三个 D.四个 因为02=0和12=1,所以有两个整数. 故选B.反馈 收藏
C To solve this problem, first find all the whole number squares less than or equal to 50: 12=1 22=4 32=9 42=16 52=25 62=36 72=49 This leaves 43 remaining positive whole numbers that are less than or equal to 50 and are not squares of whole numbers.反馈...
解析 There are 400 odd numbers between 200 and 1000. and there are 100 multiples of 5 less than 500 (including zero). But the two cases overlap-from 200 to 500 there are 30 odd numbers that are multiples of 5. Hence Total = 400 + 100 - 30 = 470. ...
3What is the difference between the sum of allwhole numbers greater than 20 and less than40, and the sum of all whole numbersgreater than 40 and less than 60().A.190B200380400 4Whatis the difference between the sum of allwhole numbers greaterthan 20 and less than40, and the sum of...
Write the whole numbers not less than 0 and not greater than 24 in the correct sets.a)b)0≤number≤24Not Multiple a multiple of 3of 3Multiple of 3量u号0Multiple of 4What can you say about the numbers in the shaded areas? 相关知识点: 试题来源: 解析 They are multiples of 3and...
How many positive whole numbers less than or equal to 50 are NOT equal to squares of whole numbers (A) 9(B) 15(C) 43(D) 44(E) 45 相关知识点: 试题来源: 解析 C To solve this problem, first find all the whole number squares less than or equal to 50: 12=1 22=4 32=9 42...
m is a whole number.7m is greater than 5010m is less than 1157x50 m m71/710 C 115M 11.5Write all the numbers that m could be8,9,10,11 相关知识点: 试题来源: 解析 http://gallery.fbcontent.cn/latex?decode=false&latex=%24%24%5Cbegin%7Barray%7D%7Bc%7D%20%207%20x%3E50%20%5C...