Please click above answer
The sides of a polygon are segments that intersect exactly two other segments, one at each endpoint. (B)
If all of the sides of a convex polygon are extended, none of them will contain any points that are inside the polygon. (D)
To solve this, we can use the z statistic. The formula for
z score is given as:
z = (x – u) / s
where x is the actual cost = 4000, u is the mean cost =
5000, and s is the standard deviation = 2000
Solving for z:
z = (4000 – 5000) / 2000
z = - 0.5
<span>Therefore the piano cost is only 0.5 standard deviations
below the average cost.</span>
The answer for 80% of games is 16 games is 12.8.
