The basic difference between positive and negative integers is that the value of negative integers is less than 0, while the value of positive integers is always greater than 0. On the left side of 0, we will find negative integers, and to the right of 0, we will find positive integers...
The sum of n different positive integers is less than 50.The greatest possible value of n is( )A.10B.9C.8D.7 答案 B 结果二 题目 (5分)The sum of n different positive integers is less than 50.The greatest possible value of n is( ) A. 10 B. 9 C. 8 D. 7 答案 (5分)The sum...
cannot be written as the sum of two positive integers (not necessarily different)?( ).A. 0 B. 1 C. 2 D. 49 相关知识点: 试题来源: 解析 B Every integer n can be written as the sum of 1 and the integer just below n. But, these are not both positive if n=1. 有多少小于100的...
, each of whose digits is a prime number, one is selected at random. What is the probability that the selected number is prime?( ) A.899 B.25 C.920 D.12 E.916 相关知识点: 试题来源: 解析 B 结果一 题目 Among the positive integers less than 100, each of whose digits is a prime...
题目【题目】Among the positive integers less than 100, each of whose digits is a prime number, one is selected at random. What is the probability that the selected number is prime?()A.8/(99) B.25C.9/(20) D.11/2 E.9/(16) 相关知识点: ...
百度试题 结果1 题目How many positive integers less than 20 are equal to the sum of a positive multiple of 3 and a positive multiple of 4? A. 2 B. 5 C. 7 D. 10 E. 19 相关知识点: 试题来源: 解析 D 反馈 收藏
How many positive integers less than 100 are NOT equal to squares of integers? A. 9 B
a这些都是我的生日礼物 These all are my birthday gifts[translate] aWhat`s the answer for number 4? 什么`s答复为第4 ?[translate] ahow many positive integers less than 36 are equal to 4 times an odd integer 多少个正面整数少于36与4次是相等的每奇怪的整数[translate]...
How many positive integers less than 50 have an odd number of positive integer divisors?有多少个小于 50 的正整数,这些数有奇数个正整数约数? A. 3 B. 5 C. 7 D. 9 E. 11 相关知识点: 试题来源: 解析 CDivisors come in pairs, unless there is an integer square root, so we just need ...
百度试题 结果1 题目How many positive integers less than 50 have an odd number of positive integer divisors (因数)?()(A)1(B)3(C)5(D) 7 相关知识点: 试题来源: 解析 D 反馈 收藏