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OLEGan [10]
3 years ago
9

Due tomorrow please help

Mathematics
1 answer:
NeX [460]3 years ago
7 0
For some of these, a calculator is helpul.

The sum is 294903.

_____
This is the sum of 15 terms of a geometric sequence with first term 9 and common ratio 2. That sum is given by the formula
S_{n}=a\dfrac{r^{n}-1}{r-1}
S_{15}=9\dfrac{2^{15}-1}{2-1}=9\cdot(32768-1)=294903

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