Which sequence matches the recursive formula? $a_{n} = 2 a_{n - 1} + 5$ $a_n = 2a_(n-1) + 5$ , where $a_{1} = 5$ $a_1 = 5$ A) 5, 10, 15, 20, ... B) 5, 15, 35, 75, ... C) 5, 15, 25, 35, ... D) 5, 20, 35, 50, ...

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Answer 1 · 2016-05-10T22:56:52

B) $5, 15, 35, 75,...$

$a_1 = bb(5)$

$a_2 = 2a_1+5 = 2*5+5 = bb(15)$

$a_3 = 2a_2+5 = 2*15+5 = bb(35)$

$a_4 = 2a_3+5 = 2*35+5 = bb(75)$

Which sequence matches the recursive formula? a_n = 2a_(n-1) + 5an=2an−1+5a_n = 2a_(n-1) + 5, where a_1 = 5a1=5a_1 = 5 A) 5, 10, 15, 20, ... B) 5, 15, 35, 75, ... C) 5, 15, 25, 35, ... D) 5, 20, 35, 50, ...