Answer:
Below in bold.
Step-by-step explanation:
The hexagon is made up of 6 equilateral triangles.
So the Base = 12 cm.
Height a = 12 cos 30 = 10.392 cm
So area of 1 triangle = 1/2 * 12 * 10.392 cm^2
- and total area = 6 * 1/2 * 12 * 10.392
= 36 * 10.392
= 374.11 cm^2 to the nearest hundredth.
Answer:
r = 0.9
Step-by-step explanation:
Correlation is denoted by r. r² is usually used to measure variation along the line as a fraction of the total variation.
We are told class attendance explained 81% of the variation in grade index among the students. Thus, for this regression, the variation is;
r² = 81%
Or r² = 0.81
Thus, the numerical value of the correlation r would be;
r = √0.81
r = 0.9
Answer:
0.02493
Step-by-step explanation:
We are to Find :
P(p > 0.12) ;
This is equivalent to:
1 - P(p ≤ 0.12)
Using the relation :
1 - P((p - po) / (√(po(1 -po)) / n))
1 -P((Z ≤0.12 -0.09) / (√(0.09(1 -0.09)) / 350))
1 -P((Z≤0.03 / (√(0.09(0.91))/350))
1 - P((Z≤0.03 / 0.0152970))
1 - P((Z≤1.96116)
1 - 0.97507 (from Z probability calculator)
= 0.02493
Answer:
375
Step-by-step explanation:
<h2>HOPE THIS HELPS </h2>
