The empirical rule states that in a normal distribution,
68% of data is within 1 std deviation of the mean
95% of data is within 2 std deviation of the mean
99.7% of data is within 3 std deviation of the mean
In this case 95% of the cases would be within two std deviations of the mean
mean - 8 and mean + 8
72 - 8 = 64 and 72 + 8 = 80
then 95% of the scores are between 64% and 80% on the test.
Answer:
5^2 x 2^0 = 25 or 5^2 = 25
Step-by-step explanation:
5^2 = 25
2^0 = 1 (Anything raised to the zero power equals one no matter what the number is)
25 x 1 = 25
the net is pretty much the net of a long box, kinda like the one in the example in the picture below. Due to that, we can pretty much assume the two sides sticking up and down, are just two small 6x3 rectangles, namely, they have a height of 3, reason why we assume that, if that if we fold the other sides to make out the box, those two sides sticking out, must be 3m to neatly snugfit.
now, if we close the box as it stands, the sides(laterals) will be on the left-right sides two 3x15 rectangles, and on the front-back sides, two 6x15 rectangles.
we're excluding the top and bottom sides, because those are not "laterals", or sides of the box.

2.03
×
1.2
---------
406
+
2030
----------
6036
×
0.5
----------
3.0180 either 3.0180 is the anwser or 1.218
7/10s of 40 would be 28 so that leave 12 hours to work inside