Geometric Sequence

Which of the following is the 8th term of the sequence 4, -8, 16, -32, ...?

• -256

• 512

• -1024

• 2048

Find the 10th term of the sequence 0.5, 1, 2, 4, ...

• 512

• 1024

• 2048

• 4096

The 4th term of a geometric sequence is -75 and the common ratio is -5. What is the explicit formula of the sequence?

Find the 10th term of the following geometric sequence

5, 20, 80, 320, ...

• 81,920

• 327,680

• 1,310,720

• 5,242,880

Given the formula for a geometric sequence , r stands for

• common difference

• wanted term

• common ratio

• first term

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

• 8192

• 32768

• 2048

• 512

List the first five terms of the geometric sequence. Assume that the sequence begins at n = 1.

• 1 , 3 , 6 , 9 , 12

• 3 , 9 , 27 , 81 , 243

• 0 , 1 , 3 , 9 , 27

• 1 , 3 , 9 , 27 , 81

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

• r = 2

• r = 8

• r = 1/4

• r = 1/2

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

• 59,050

• -59,048

• -78,732

• 118,096