3 years ago

Find the indicated term of the given arithmetic sequence.

1 answer:

4 0

$a_n=a_1+(n-1)d\\\\a_1=45;\ d=-6\\\\a_n=45+(n-1)\cdot(-6)=45-6n+6=51-6n\\\\\boxed{a_n=51-6n}\\\\n=8\\\\a_8=51-6\cdot8=51-48=3\\\\\boxed{a_8=3}\to\fbox{c.}$

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dem82 [27]

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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