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Khan Academy Algebra Practice
Mendham High School
Ixl Algebra 2
Geometric Sequences and Series Quiz
1. Find the common ratio of the geometric sequence if the first term is 6 and the fourth term is 48.
5
7
1
2
2. Find the fifth term of a geometric sequence if the first term is 7 and the common ratio is 0.5. Round to the nearest hundredth.
.44
.57
.42
.43
3.Determine the sum of the first 10 terms of a geometric series if the first term is 2 and the common ratio is 3.
80456
78263
59048
62534
4.If the sum of an infinite geometric series is 12 and the common ratio is 1/3, find the first term.
7
11
9
8
5.Find the sum of an infinite geometric series if the first term is 5 and the common ratio is 1/2.
3
10
2
16
6.Determine the value of 'n' if the sum of the first 'n' terms of a geometric series is 280, the first term is 20, and the common ratio is 2.
n=7
n=5
n=6
n=4
7.If the sum of the first 8 terms of a geometric series is 7 and the common ratio is 0.5, find the first term. Round to the nearest tenth.
3.35
3.5
3.45
4
8. Find the sum of the infinite geometric series with the first term 9 and the common ratio 1/3.
35/3
27/2
26/4
23/2
9. If the sum of an infinite geometric series is 16 and the common ratio is 2, find the first term.
-16
-17
18
19
10. If the sum of the first 5 terms of a geometric series is 248 and the common ratio is 0.5, find the first term. Round to the nearest tenth.
946.3
298.4
653.6
255.6
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