11. Solve the following arithmetic and geometric sequences. a. Find the sum of the first 26 terms, given a, = -5 and az6 = 220. b. Find the sum of the first 30 terms of the arithmetic sequence 12,. c. Find the 10th term of the geometric sequence 8, 4, 2, 1, . d. Find the sum of the geometric series 1+ 2+ 22 + 23 +.. + 220.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter7: Exponents And Exponential Functions
Section7.9: Geometric Sequences As Exponential Functions
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11. Solve the following arithmetic and geometric sequences.
a. Find the sum of the first 26 terms, given a, = -5 and a26
220.
b. Find the sum of the first 30 terms of the arithmetic sequence, 1,,2,.
c. Find the 10th term of the geometric sequence 8, 4, 2, 1, ..
2
d. Find the sum of the geometric series 1+ 2 +22 + 23 + ..
+ 220.
Transcribed Image Text:11. Solve the following arithmetic and geometric sequences. a. Find the sum of the first 26 terms, given a, = -5 and a26 220. b. Find the sum of the first 30 terms of the arithmetic sequence, 1,,2,. c. Find the 10th term of the geometric sequence 8, 4, 2, 1, .. 2 d. Find the sum of the geometric series 1+ 2 +22 + 23 + .. + 220.
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