Looks like you just evaluated the summand for the given value of

, whereas the question is asking you to find the value of the sum for the first

terms.
Let

. Then

is the

th partial sum.

happens to be the first term in the series, which is why that box is marked correct:

But the next partial sum is not correct:

and this is not the same notion as the second term (which indeed is 0.75) in the series.
Answer: I haven't been in Geometry in a while but watch this video. It should help you.
Step-by-step explanation:
And soon it'll avenue golden retriever to play with.
God, i feel so stupid writing that :(
Answer:
They jump at the same height.
Step-by-step explanation:
.8 meters=2.62467 ft
80cm=2.62467 ft