9514 1404 393
Answer:
sum = ∑[n=1,5] 4^(n-4)
Step-by-step explanation:
First of all, you need to be able to describe the n-th term.
Here, we have ...
term #: 1, 2, 3, 4, 5
value: 4^-3, 4^-2, 4^-1, 4^0, 4^1
That is, the exponent of 4 is 4 less than the term number. So, the n-th term is 4^(n-4). The sum of the 5 terms shown is then ...

The answer would be “most of the students in the school said hot dogs are their favorite lunch” since 9 out of 10 is the vast majority.
Answer:
Option (4)
Step-by-step explanation:
Given sequence is,

We can rewrite this sequence as,

There is a common ratio between the successive term and the previous term,
r = 
r = 
Therefore, it's a geometric sequence with infinite terms. In other words it's a geometric series.
Since sum of infinite geometric sequence is represented by the formula,
, when r < 1
where 'a' = first term of the sequence
r = common ratio
Since common ratio of the given infinite series is greater than 1 which makes the series divergent.
Therefore, sum of infinite terms of a series will be infinite Or the sum is not possible.
Option (4) will be the answer.
Answer:

Step-by-step explanation:

I’m pretty sure it’s B. -3/8x - 1/4 :).