Answer:
Step-by-step explanation:
Given
Required
What is l when S = 725
This can be solved using Sum of n terms of an AP;
Where
To get T1; we substitute 4 for k in 2k - 3
To get Tn; we substitute l for k in 2k - 3
n = the number of terms;
Since k = 4 to l, then
Substitute these values in
Collect Like Terms
Open the bracket
Subtract 725 from both sides
or
or
But l must be positive;
Hence,
Answer:
cant see the picture sorry
Step-by-step explanation:
Answer:
2/3 is equal to 66.6% because
Step-by-step explanation:
1/3 is equal to 33.3%, and fractions with the same denominator are almost like multiples. So, if 1/3 is equal to 33.3%, we have to multiply that number by the number 2. 33.3% times two is equal to the number 66.6%, and therefore it is our answer.
Let
be the common ratio between terms. Then
Now denote the
th partial sum of the series by
Multiply both sides by
, then subtract from the above to get
As
, you're left with
Answer what I can’t see anything ?