A: an odd number B: an even number C: a prime number D: a multiple of 相关知识点: 试题来源: 解析 A The sum is always odd. For example, . 一个奇数和一个偶数的和总是( ). .一个奇数 .一个偶数 .一个质数 .一个的倍数 总和总是奇数.例如,. 故选.反馈...
Partition the data into k folds, and each of the folds is set aside at turn as a test set. A clustering model is then computed on the other k − 1 training sets, and the value of the objective function (for example, the sum of the squared distances to the centroids for k-means)...
(A)The sum of several odd numbers is an odd number.(B)The sum of an odd numbers and an even number is an even number.(C)The sum of two prime numbers is an even number.(D)The sum of two odd numbers is a composite number.(E)One of any three consecutive positive integers must ...
The number of terms in an A.P. is even; the sum of the odd terms is 24, of the even terms 30, and the last term exceeds the first by 10 find the number of ter
Question 6Selected one answer choice 收藏 笔记 反馈 If x is the sum of n odd integers, which of the following must be true? A.x is odd. B.x is even. C.x≠0 D.If x is even, n is even. E.If n is odd, x is even. 我的答案: 登录查看答案...
Choice C is correct. The sum of an odd number and an even number can be expressed as (2n+1)+(2m), where n and m are integers. (2n+1 must be odd, and 2m must be even.) Their sum is equal to 2n+2m+1, or 2(m +n)+ 1. Since (m+ n) is an integer, the quantity 2(...
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If the sum of the ones' digits is odd, then the whole sum is odd. 下面哪个和是奇数( ). A.1248+8421 B.8412+4812 C.8421+4821 D.1248+1284 和的个位数是奇数,那么整个数就是奇数. A.1248+8421=∗∗∗9 B.8412+4812=∗∗∗∗4 C.8421+4821=∗∗∗∗2 D.1248+1284=...
(1) At least one of the integers is negative. (2) At least one of the integers is positive. 选项: 答案: C 提问列表 提问: 题目说的是连续的奇数,条件说的是至少,没说仅有一个,答案是C,但是我觉得可能是-1,1,3,5,7也可能是-3,-1,1,3,结论不确定啊。怎么会选C呢?
Proof without words: The sum of consecutive odd cubes is a triangular number.Solves a mathematical problem where cubes were added to get a triangular number.ZergerMonnteJ.EBSCO_AspMathematics Magazine