Use the Indicated Formula to Find the Sum $S = \frac { n ( n + 1 ) } { 2 }$

question 190

Multiple Choice

Use the indicated formula to find the sum.
-Use $S = \frac { n ( n + 1 ) } { 2 }$ to find the sum of $1 + 2 + 3 + \ldots + 7000$ .

• A) \(24,499,999.5\)
• B) \(24,503,500\)
• C) \(24,496,500\)
• D) \(12,248,250\)

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