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WINKIESIN
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the first term of an arithmetic sequence is 2 while the 2nd term is 7. what is the 12th term of the sequence? a. 42 b.47 c.52 d.57​

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RZLKYRNSIN

Answer:

D. 57

Step-by-step explanation:

[tex]\alpha_n = \alpha_{1} +(n-1) d\\\alpha _12=2 + (12-1) 5\\\alpha _12=2 + (11) d\\\alpha_12= 2 + 55\\\alpha _12 = 57[/tex]

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