How much would $200 invested at 4% interest compounded annually be worth after 8 years?
1 answer:
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Look at the picture.
The formula of an area of a triangle:
In the equilateral triangle, the measures of all angles are the same and equal to 60°.
Therefore your answer is:
we are given to find
we know that
where
i is number of rows
j is number of column
Here , we get
i=2
and j=3
so,
means second row and third column
we can look at matrix and find element
we can see that
that element is -21
so,
...........Answer
