26-04-2019
Mathematics

contestada

Find a8 in the arithmetic sequence when a1=-9 and d=7

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sheilin475 sheilin475

26-04-2019

What do you mean let me see a picture of the problem

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jimrgrant1 jimrgrant1

26-04-2019

Answer:

40

Step-by-step explanation:

The n th term of an arithmetic sequence is

[tex]a_{n}[/tex] = [tex]a_{1}[/tex] + (n - 1)d, hence

[tex]a_{8}[/tex] = - 9 + (7 × 7) = - 9 + 49 = 40

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