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PLEASE HELP
Is this A, B, or C?

PLEASE HELP Is this A, B, or C?-example-1

2 Answers

0 votes
i would say A.)..........( sorry answer too short)
User Tony Day
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8.4k points
6 votes
This is the sum of the first six terms of a geometric sequence.
The sum can be written like this:

-4(1-\left((1)/(2)\right)^6)/(1-(1)/(2))=-8\left(1-(1)/(2^6)\right)\\ =-8(63)/(64)\\=-(63)/(8)
The correct answer is the second one.
User Efeyc
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8.8k points