In Exercises 31–36, find the indicated sum. Use the formula for the sum of the first n terms of a geometric sequence. 10 Σ (i = 1) 5 · 2^i

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1. Identify the sequence as a geometric sequence with the general term a_i = 5 \cdot 2^i.
2. Recognize that the first term (a_1) is 5 \cdot 2^1 = 10.
3. Determine the common ratio (r) of the sequence, which is 2.
4. Use the formula for the sum of the first n terms of a geometric sequence: S_n = a_1 \frac{r^n - 1}{r - 1}.
5. Substitute a_1 = 10, r = 2, and n = 10 into the formula to find the sum.