Determine if the following sequence is geometric

A) 5,2,-1,-4

B) 5,10,20,40

Question

Rosemary Conley

Mathematics

6 February, 14:42

Determine if the following sequence is geometric

A) 5,2,-1,-4

B) 5,10,20,40

+5

Answers (1)

Know the Answer?

Vincent Freeman · Answer 1

A) No. It is an arithmetic sequence because you are subtracting by 3.

B) Yes. It is a geometric sequence because you are multiplying by 2.

Step-by-step explanation:

Arithmetic is addition or subtraction.

5 - 3 = 2 2 - 3 = - 1 - 1 - 3 = - 4

Geometric is multiplication.

5 X 2 = 10 10 X 2 = 20 20 X 2 = 40

Determine if the following sequence is geometricA) 5,2,-1,-4B) 5,10,20,40

Determine if the following sequence is geometric

A) 5,2,-1,-4

B) 5,10,20,40