briannaparker11
briannaparker11 briannaparker11
  • 21-01-2020
  • Mathematics
contestada

30 points!! What is the sum of this series?

30 points What is the sum of this series class=

Respuesta :

sam4040
sam4040 sam4040
  • 27-01-2020

Answer:

[tex]Sum=95[/tex]

Step-by-step explanation:

[tex]S=\sum_{n=4}^8 (2n+7)\\\\Expand\ the\ Series\\\\S=(2\times 4+7)+(2\times 5+7)+(2\times 6+7)+(2\times 7+7)+(2\times 8+7)\\\\S=15+17+19+21+23\\\\S=95[/tex]

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