Answer:
HI ≈ 12.22
Step-by-step explanation:
tan I = GH / HI
tan 42° = 11 / HI = 0.90
HI = 11/0.90 = 12.22
Answer:
Sabemos que:
![MH(x, y) = \frac{2xy}{x+y}](https://tex.z-dn.net/?f=MH%28x%2C%20y%29%20%3D%20%5Cfrac%7B2xy%7D%7Bx%2By%7D)
y tenemos que:
![MH (a,4) = \frac{2*a*4}{a+4} = \frac{8*a}{a+4} = 6](https://tex.z-dn.net/?f=MH%20%28a%2C4%29%20%3D%20%5Cfrac%7B2%2Aa%2A4%7D%7Ba%2B4%7D%20%3D%20%5Cfrac%7B8%2Aa%7D%7Ba%2B4%7D%20%3D%206)
Con esto podemos encontrar el valor de a:
8*a/(a+ 4) = 6
8*a = 6*(a + 4) = 6*a + 24
8a - 6a = 24
2a = 24
a = 24/2 = 12.
Tambien sabemos que:
![MH(8,b) = \frac{2*8*b}{8+b} =\frac{16*b}{8+b} = 12](https://tex.z-dn.net/?f=MH%288%2Cb%29%20%3D%20%5Cfrac%7B2%2A8%2Ab%7D%7B8%2Bb%7D%20%3D%5Cfrac%7B16%2Ab%7D%7B8%2Bb%7D%20%3D%2012)
Y de ahí podemos despejar b:
(16*b)/(b + 8) = 12
16*b = 12*(b + 8) = 12b + 96
16b - 12b = 96
4b = 96
b = 96/4 = 24
Entonces tenemos a = 12 y b = 24, y el MH de a y b es:
MH(12,24) = 2*12*24/(12 + 24) = 24*24/36 = 16
Liar. This is only worth 5 points!!!!!!!!!!!!!!!!!!!!
10 kids total
picking Truman would be 1 out of 10 or 1/10
then there would be 9 kids left so picking Ryan would be 1 out of 9 or 1/9
the probability of picking both would be 1/10 * 1/9 = 1/90
I would argue that it does due to that if it increased, it's either from a 30% chance that nothing changed or that the teachers did it. Since 100-30=70, there's a 70 percent chance that the teaching effect did work!