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.
In a right triangle, the hypotenuse is √2 x the legs. In this case, the value of x is
.
Answer:
2159.74
Step-by-step explanation:
you times 456 by 4 then you times that answer by the 1742%
Length = 4w + 2
A = length x width
= (4w + 2) . w
= 4w^2 + 2w ft square
question is wrong sir
there is no any value with two points