Find the 51th term of the arithmetic sequence 25, 12 and -1

Mathematics

1 answer:

levacccp [35]3 years ago

6 0

Answer:

-625

Step-by-step explanation:

1. the formula is:

$a_n=a_1+d*(n-1);$

where n - the number of the required term, d - the step between two neighbor terms, a₁ - the first term of the given sequence.

2. according to the formula above:

$a_{51}=25-13*(51-1)=25-650=-625.$

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