Given the Formula $S = \frac { n } { 2 } ( a + l ) , S = 629 , n = 27 , l = 29$

question 201

Multiple Choice

Given the formula: $S = \frac { n } { 2 } ( a + l ) , S = 629 , n = 27 , l = 29$ Find a.

• A) \(a = \frac { n - l } { 2 S } = 0.064\)
• B) \(a = \frac { 2 S } { n } - l = 18\)
• C) \(a = \frac { S } { n } - 2 l = 16\)
• D) \(a = \frac { n - l } { 2 S } = 0.057\)
• E) \(a = \frac { S } { 2 n } - l = 17\)

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