The fourth number times -1/2 is the fifth number: -2 × -1/2 = 1.
Step-by-step explanation:
Because these sequences behave according to this simple rule of multiplying a constant number to one term to get to another, they are called geometric sequences.
Answers & Comments
Answer:
a + ar + ar^2 + ar^3 + . . .
a = start term
r = common ratio
Answer:
The fourth number times -1/2 is the fifth number: -2 × -1/2 = 1.
Step-by-step explanation:
Because these sequences behave according to this simple rule of multiplying a constant number to one term to get to another, they are called geometric sequences.