Mathematics, 06.07.2019 04:00 Elliescott9231
The expression (picture) represents the sum of the first 200 multiples of 3. what is the sum of the first 200 multiples of 3? a. 803 b. 60,300 c. 120,600 d. 360,000
Answers: 1
represents an arithmetic sequence. [3, 6, 9, 12,..............]![=\frac{n}{2}[2a+(n-1)d]](/tpl/images/0056/5411/c42f4.png)
![\sum_{n=1}^{200}(3n)=\frac{200}{2}[2(3)+(200-1)(3)]](/tpl/images/0056/5411/094b6.png)
![100[6+(199)(3)]=100[6+597]](/tpl/images/0056/5411/835df.png)
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The expression (picture) represents the sum of the first 200 multiples of 3. what is the sum of the...
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