Geometric Sequence and Series

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 sum of the first ten terms of the sequence 4, -12, 36, -144 . . . ?

• 59,050
• -59,048
• -78,732
• 118,096

Tags

CCSS.HSA.SSE.B.4

The next term of the sequence 2,4,8,16 is

• 64

• 32

• 108

• 20

Tags

CCSS.HSF.BF.A.2

Is the given sequence geometric?

• Yes

• No

• Cannot be determined

Tags

CCSS.HSF.BF.A.2

CCSS.HSF.LE.A.2

Find the 10th term of the following geometric sequence

5, 20, 80, 320, ...

• 81,920

• 327,680

• 1,310,720

• 5,242,880

Tags

CCSS.HSF.BF.A.2

What would be the missing terms of the series

-1 - 5 - 25 - ... - 78125

• 125 + 625 - 3125 + 15625

• 125 - 625 - 15625

• 125 - 625 - 3125 - 15625

• 625 - 3125 - 15625

Tags

CCSS.HSF.BF.A.2

Given the formula for a geometric sequence,  $a_1$   stands for $a_n=a_1r^{n-1}$  

• common difference

• wanted term

• common ratio

• first term

Tags

CCSS.HSF.BF.A.2

 $a_n=a_1r^{n-1}$  

Given the formula for a geometric sequence , r stands for

• common difference

• wanted term

• common ratio

• first term

Tags

CCSS.HSF.BF.A.2

 $a_n=a_1r^{n-1}$  

Find the 7th term in the sequence when the first term is 2, and the common ratio is 4

• 8192

• 32768

• 2048

• 512

Tags

CCSS.HSF.BF.A.2

What is the 14th term of the geometric sequence?

• 14,348,907
• 4,782,969
• 1,594,323
• 45

Tags

CCSS.HSF.BF.A.2