Answer:
Option B. 60300
Step-by-step explanation:
The given expression 
represents an arithmetic sequence. [3, 6, 9, 12,..............]
In this sequence first term a = 3
common difference d = 3
and number of terms n = 200
We have to find the sum of first 200 terms of this sequence.
Formula of the sum of an arithmetic sequence is ![=\frac{n}{2}[2a+(n-1)d]](https://tex.z-dn.net/?f=%3D%5Cfrac%7Bn%7D%7B2%7D%5B2a%2B%28n-1%29d%5D)
Now we put the values in the formula
![\sum_{n=1}^{200}(3n)=\frac{200}{2}[2(3)+(200-1)(3)]](https://tex.z-dn.net/?f=%5Csum_%7Bn%3D1%7D%5E%7B200%7D%283n%29%3D%5Cfrac%7B200%7D%7B2%7D%5B2%283%29%2B%28200-1%29%283%29%5D)
= ![100[6+(199)(3)]=100[6+597]](https://tex.z-dn.net/?f=100%5B6%2B%28199%29%283%29%5D%3D100%5B6%2B597%5D)
= 
= 60300
Therefore option B. 60300 is the answer.
Answer:
See Explanation
Step-by-step explanation:
The question is incomplete, as the image of the polygon is not given.
I will answer this question with the attached image (similar to your question)
The attached polygon is a trapezoid of the following dimensions.
<u>Parallel sides</u>
So, the area is:
Answer:
Step-by-step explanation:
slope of r:
s is perpendicular to r:
