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The sum of the first 8 terms in a geometric sequence with common ratio 2 is 1,785. What is the third term?
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The sum of the first 8 terms in a geometric sequence with common ratio 2 is 1,785. What is the third term?

User Md Alamin
by
8.4k points

1 Answer

2 votes

Answer:

28

Explanation:

x+2x+4x+8x+16x+32x+64x+128x = 1785

255x = 1785

1785/255=7

1) 7

2) 14 (7*2)

3) 28 (14*2)

User Ed Harrod
by
8.3k points
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