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  5. Pch 8.3 Geometric Sequences & Series Practice

PCH 8.3 Geometric Sequences & Series Practice

Authored by Kristen Bruning

Mathematics

9th - 12th Grade

CCSS covered

Used 5+ times

PCH 8.3 Geometric Sequences & Series Practice
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13 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Find the 10th term of the geometric sequence 6, -2, 2/3, ... 


 −26561-\frac{2}{6561}  

-.999

-512

 −2563-\frac{256}{3}  

Tags

CCSS.HSF.BF.A.2

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Find the eighth term of a geometric sequence for which a3 = 224 and r = -½.

-28
-112
56
-7

Tags

CCSS.HSF.BF.A.2

CCSS.HSF.IF.A.3

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Given a geometric sequence where a3 = 320 and a6 = 20480, what is the common ratio?

4

20

64

6720

Tags

CCSS.HSF.BF.A.2

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The 3rd term of a geometric sequence is 16/3 and the 5th term is 64/27. Assuming r is positive, Find the 7th term of this sequence. Write the answer as a simplified fraction.


256243\frac{256}{243}

409619683\frac{4096}{19683}

−217729-\frac{217}{729}

8243\frac{8}{243}

Tags

CCSS.HSF.BF.A.2

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Find the sum  ∑n=192 n−1\sum_{n=1}^92\ ^{n-1}  

511

1022

-1024

0

Tags

CCSS.HSA.SSE.B.4

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Evaluate the sixth partial sum of the geometric series:

-2 - 10 - 50 - 250...,

-7812

-9678

-8686

-9932

Tags

CCSS.HSA.SSE.B.4

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Find S9 of the series: -380 + 665 - 1163.75 + 2036.5625 - ….. Round your final answer to the nearest tenths.

-21,409.45

-58,875.98

78,501.31

-33,426.28

Tags

CCSS.HSA.SSE.B.4

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