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3 years ago

Please help with this! I will mark you as brainliest!

Mathematics

2 answers:

Svetllana [295]3 years ago

3 0

Answer:

an = 5 + (n-1)7

= 5+7n-7

= 7n-2

puteri [66]3 years ago

3 0

Answer:

$a_{n}$ = 7n - 2

Step-by-step explanation:

The n th term of an arithmetic sequence is

$a_{n}$ = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 5 and d = 12 - 5 = 7, thus

$a_{n}$ = 5 + 7(n - 1) = 5 + 7n - 7 = 7n - 2

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