Sigma Notation, Area under a Curve

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11

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12

$\sum_{d=1}^9\left(d\right)$

$\sum_{d=1}^{10}\left(d+1\right)$

$\sum_{d=1}^{10}\left(d\right)$

$\sum_{d=0}^{10}\left(d+1\right)$

$\sum_{k=0}^7k^2$

$\sum_{k=1}^8k^2$

$\sum_{k=1}^{49}k^2$

$\sum_{k=1}^7k^2$

 $\frac{1}{5}+\frac{2}{17}+\frac{3}{13}+\frac{4}{37}+\frac{5}{25}$  

 $\frac{2}{5}+\frac{5}{17}+\frac{3}{13}+\frac{7}{37}+\frac{4}{25}$  

 $\frac{5}{2}+\frac{17}{5}+\frac{13}{3}+\frac{37}{7}+\frac{25}{4}$  

 $\frac{2}{10}+\frac{5}{17}+\frac{3}{26}+\frac{7}{37}+\frac{4}{50}$  

100

110

30

40

70

110

90

100

 $\frac{49}{12}$  

 $\frac{47}{12}$  

 $\frac{11}{6}$  

 $\frac{43}{12}$  

 $\sum_{n=0}^4\left(3n+2\right)$  

 $\sum_{n=0}^4\left(3n-1\right)$  

 $\sum_{n=0}^4\left(3n+5\right)$  

 $\sum_{n=0}^4\left(3n-4\right)$  

 $\sum_{n=1}^9\left(2\left(1+0.5n\right)^2\right)$  

 $\sum_{n=0}^8\left(2\left(1+0.5n\right)^2\right)$  

 $\sum_{n=1}^9\left(2\left(0.5n\right)^2\right)$  

 $\sum_{n=0}^8\left(1+0.56n\right)^2$  

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8