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kari74 [83]
3 years ago
7

Someone help me!!! Please, i only have a few minutes :(

Mathematics
2 answers:
GuDViN [60]3 years ago
4 0

Answer:

true, false

Step-by-step explanation:

muminat3 years ago
4 0
Correct Answer: True ( first picture )
Correct Answer: False ( second picture )
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Given the similarity statement ΔHIJ ∼ ΔWXY, which angle corresponds with ∠X?
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b. angle I

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camille can ride any bus between 11 and 34 that can be divided evenly by 3,and is an even number,which numbers are the buses she
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A 90% confidence interval for a proportion is found to be (0.62, 0.68). What is the sample proportion?
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B. 0.65

Step-by-step explanation:

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Es urgente ¡¡¡ si la MH de a y 4 es 6 y la MH de 8 y b es 12 calcula la MH de a y b
TiliK225 [7]

Answer:

Sabemos que:

MH(x, y) = \frac{2xy}{x+y}

y tenemos que:

MH (a,4) = \frac{2*a*4}{a+4} = \frac{8*a}{a+4} = 6

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

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

7 0
3 years ago
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