Answer:
D. m =
Step-by-step explanation:
The triangle given is a 30-60-90 triangle. This means that the longer side of the leg is (m), the shorter side of the leg is x (n), and the hypotenuse is 2x.
The hypotenuse is already given as 2, and since the hypotenuse is 2x, to find the shorter side (n), just divide by 2, giving you n = 1.
Now onto the longer side (m); it's represented by , and since x is just 1, all you do is put x in front of
.
But in this case, x is just 1, so it's like "imaginary," and doesn't need to be written out.
To find the mean transaction amount. We need to understand mean first.
Mean (or average) is a number that expresses the central value in a set of data, which is calculated by dividing the sum of the values in the set by their number of values.
Here, the transactions shown are
$250, -$60, -$94, $300, and -$186. So there are 5 transactions.
Now mean transaction amount is given by:
So, the mean transaction amount over 5 transactions is $42.00.