Geometric Sequence Picture

What is the common ratio of this sequence ? 5, 25, 125, ...

• 4

• 2

• 5

• 6

What kind of sequence is illustrated below?
 400, 200, 100, 50, 25, ...

• Arithmetic

• Geometric

• Neither

Determine whether the following sequence is arithmetic or geometric and what the common difference/ratio would be:

• arithmetic;

• geometric;

• arithmetic;

• geometric;

Find the next three terms: 4, 12, 36, 108, ...

• 324, 972, 2916

• 972, 2916, 8748

• 405, 1215, 3645

Find the next three terms: -4, -12, -36, -108, ...

• 36, -108, 324

• -324, -972, -2916

• 324, -972, 2916

• -108, 324, -972

Write the explicit formula for the geometric sequence.

• a_n = 4(3)^n-1

• a_n = 3(4)^n-1

• a_n = -4(3)^n-1

• a_n = 3(-4)^n-1

What is the 14th term of the geometric sequence?

• 14,348,907

• 4,782,969

• 1,594,323

• 45

Find a₁₂ in the sequence -1, -3, -9, -27, ...

• -177,147

• -19,683

• -59,049

• 118,098

Identify if the following is arithmetic, geometric, or neither.

50, 25, 12.5, 6.25, …

• Arithmetifc

• Geometric

• Neither

How many circles would be in picture 5?

• 13 circles

• 14 circles

• 15 circles

• 16 circles