Which of the following represents a geometric sequence?
i 1/4,1/4,1/4,1/
ii 1/4,1/5,1/6,1/
iii 1/4,1,-4,
iv 1/4,-4,1/4,-
a. i b. ii c. iii d. iv

D

Step-by-step explanation:

There are two types of sequences.One of them is called geometric and the second one is called arithmetic.If you are trying to find ut whether it is a geometric or arithmetic,all you have to do is simple :

If

But if

Now let's have a look at this sequence down below (D)

We can apply our formulas :

-4-1/4=1/4+4

-4.25≠4.25

As you can see it is not an arithnetic sequence.

-4/(1/4)=-4/(1/4)

-16=-16

IV

Step-by-step explanation:

g

step-by-step explanation:

median is the value separating the higher half of a data sample, a population or probablity distribution from the lower half.

step-by-step explanation:

say you have 3,8,7,3,1,9,8 order them from lowest to highest

if orderd it would be 1,3,3,7,8,8,9 now you take away from the lowest and the highest until you end up in the middle.

so you would remove the 1 and 9 leaving you with 5 digits remaining

when you've reached the middle that would be your answer so in this case the answer is 7

if there were two numbers left say 7 and 5 you'd and them together so 12 then divide by 2 witch would equal 6 so the answer would be 6

good luck on that project hoped i you at all