Answer:
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
Answer:
6 minutes
Step-by-step explanation:
68% of people will lie between one standard deviation from the mean. If the mean is 22, and 1 standard deviation away is 16 or 28, the standard deviation must be six (28-22=6)
The first step is to find the relationship between the square base and the surface area.
Surface area (SA) = area of the square (SS) + area of triangles.4(AT)
Thus we can conclude area of triangles 4(AT) = SA - SS = 864 - (18*18)
4(AT) = 864 - 324 = 540
Each triangle = 540/4 = 135 square in.
An area of one triangle (AT)= (base* slant height)/2
The base = 18 in.
<span>slant height = 2(AT)/base = 2(135)/18 = 15</span>
