is the third even number, and so forth. What is the sum of the first twenty-five even counting numbers? 相关知识点: 试题来源: 解析 650. 2是第一个偶数,4是第二个偶数,6是第三个偶数,诸如此类.那么头25个偶数之和是多少? The average of the terms of the arithmetic series is the middle or...
From the first day that men began to study numbers in daily life,some numbers have been thought to be lucky,while others are considered unlucky.And it's not just Western culture that has done this.Cultures in Japan,China,India,and Africa have done the same thing,but for different reasons....
What is the average of first 39 even numbers? A39 B40 C20 D68Submit The average of first 99 even number is: A9999 B100 C9801 D9009Submit What is the average of first 12 natural numbers? View Solution What is the average of first 12 natural numbers? View Solution What is the average ...
The idea of Mismatched Socks Day is that it's not54(坏的;糟的)to be special and unique. Kids can be55(自豪的)of their differences. It takes place on the first day of Anti-Bullying Week each year. A bully is a person who56(伤害;使疼痛)or scares other peopl...
For Moira Dalibor, who teaches math at a school, this was the first count. She led a group of students and parents to an arboretum (植物园) for an exercise in data-gathering. They were among hundreds of thousands of people...
The number of terms in an arithmetic sequence is even. The sum of the odd and even-numbered terms are 24 and 30, respectively. If the last term exceeds (超过) the first by 10.5, the number of terms in the arithmetic sequence is ( ).(A) 2(B)4(C)6(D) 8 相关知识点: 试题来...
At first, there were only the numbers one to nine. Zero first appeared in Indi a about2,000 years ago. Many other ancient cultures didn't mark nothingness(不存在However, the ancient Indians were the first to consider nothingness a number.Little by little, global communication became more comm...
\frac{1}{21} 二十一分之一 one twenty-first \frac{3}{22} 二十二分之三 three twenty-seconds \frac{5}{23} 二十三分之五 five twenty-thirds 3. 当分母很大,或者不是正整数时 (when the denominator is too big or not a whole number). 分子和分母都用基数词,先读分子,中间加over(因为分子在分...
“Because I’m immunocompromised, I knew I had to do everything I could to not get infected. In the first year of the pandemic, I almost exclusively lived in quarantine. From then on, I always worked with an FF...
④He was knighted in 1967,the first music criticto be so honored.卡达斯在1967年被授予爵士称号,也是第一位被授予该头衔的音乐评论家。 knight n. 骑士;vt. 授以爵位。 the部分是插入语,对NC做进一步的说明 to部分是不定式后置定语 honor vt. 给...荣誉 ...