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。
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
15D. 21相关知识点: 试题来源: 解析 A 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...
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
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...
百度试题 结果1 题目Split 7 into the sum of 2 whole numbers. Both numbers must be less than 6 but larger than 0. How many ways of spilitting are there?相关知识点: 试题来源: 解析 2 7=2+57=3+4反馈 收藏
Whole-genome duplication (WGD) generates polyploid cells possessing more than two copies of the genome and is among the most common genetic abnormalities in cancer. The frequency of WGD increases in advanced and metastatic tumors, and WGD is associated w
These numbers will continue to increase and for most species of medical and ecological importance the genomes will become available. To determine the mode of sex determination is a challenging question for many species [18]. In the case of S. mansoni, female-specific markers have been hunted ...
2a). For coding point mutations, the average was 2.6 drivers per tumour, similar to numbers estimated in known cancer-associated genes in tumours in the TCGA using analogous approaches32. Fig. 2: Panorama of driver mutations in PCAWG. a, Top, putative driver mutations in PCAWG, represented ...
10 WHOLE NUMBERS (Chapter 1) SA_08-6 magenta cyan yellow black 0 0 5 5 2 5 2 5 7 5 7 5 5 0 5 0 9 5 9 5 1 0 0 1 0 0 0 0 5 5 2 5 2 5 7 5 7 5 5 0 5 0 9 5 9 5 1 0 0 1 0 0 Y:\HAESE\SA_08-6ed\SA08-6_01\010SA08-6_01. ...