Find the geometric means in the following sequence.
47,
?
,
?
,
?
,
? , - 789, 929
r
select one:
a. -6,580, -9,870, -13,160, -16,450
b. 329, 2,303, 16,121, 112,847
c. 2,303, -16,121, 112,847, -789,944
d. -329, 2,303, -16,121, 112,847

d (last choice)

Step-by-step explanation:

The explicit form of a geometric sequence is where is the first term while is the common ratio.

We are given the first term .

We are given the sixth term .

If we divide 6th term by 1st term this is the result:

Simplify both sides:

Take the fifth root of both sides:

The common ratio is -7.

So all we have to do is start with the first term and keep multiplying by -7 to get the other terms.

The terms -329,2303,-16121,112847 are what we are looking for in our choices.

That's the last choice.

expression #3 is not equivalent. the others are.