jshaSa3racgon jshaSa3racgon

05-05-2016
Mathematics

Answered

What is the sum of a 58-term arithmetic sequence where the first term is 6 and the last term is 405?

11,097

11,508

11,919

12,330

Verified Answer :

meerkat18 meerkat18

12-05-2016

Given:
58 - term
first term : 6
last term : 405

Sum = n (a+l)/2
Sum = 58 (6 + 405)/2
Sum = 58 411/2
Sum = 58 205.5
Sum = 11,919

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barncats barncats

12-03-2021

Answer:

11,919

Step-by-step explanation:

took the test

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