Geometric Sequence and Series

Is the given sequence geometric?

• Yes

• No

• Cannot be determined

Tags

CCSS.HSF.BF.A.2

Is the given sequence geometric?

• Yes

• No

• Cannot be determined

Tags

CCSS.HSF.BF.A.2

Find the common ratio: 16, 8, 4, 2, ...

• r = 2
• r = 8
• r = 1/4
• r = 1/2

Tags

CCSS.HSF.BF.A.2

What is the value of r the common ratio of this series 1+5+25+125,,?

• 1

• 4

• 5

• 156

Tags

CCSS.HSF.BF.A.2

In the sequence $120,\ 60,\ 30,\ 15,\ ...$  , what is the next term?

•  $\frac{15}{2}$  

•  $15$  

•  $8$  

Tags

CCSS.HSF.BF.A.2

Find the 9th term in the following geometric sequence:

4, 8, 16, 32, ...

• 384

• 512

• 768

• 1,024

Tags

CCSS.HSF.BF.A.2

Evaluate the geometric series $1-2+4-8,\ ...,\ \ \ \ \ \ \ n=8$  

•  $\frac{1}{3}$  

• -86

• -87

• -85

Tags

CCSS.HSA.SSE.B.4

What is the sum of the first seven terms of the sequence 3, 6, 12, 24, ...?

Tags

CCSS.HSA.SSE.B.4

Find the sum of the infinite geometric series, if it exists. $\sum_{n=1}^{\infty}8\left(\frac{1}{5}\right)^{n-1}$  

• 8

• 8/5

• 10

• Does not exist

Find the common ratio: -3, -9, -27, -81, ...

• r = 6
• r = -6
• r = 3
• r = -3

Tags

CCSS.HSF.BF.A.2