KatCoda KatCoda

03-03-2017
Mathematics

Answered

Find the 8th term of the arithmetic sequence:

10, 9 3/4,9 1/2,9 1/4

8 1/4

8 1/2

7 1/2

7 3/4

Verified Answer :

royalranger royalranger

03-03-2017

an = a1 + (n-1)d

a8 = 10 + (8-1)(-1/4)
a8 = 10 + 7(-1/4)
a8 = 10 + (-1.75)
a8 = 8.25 or 8 1/4

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