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yulyashka [42]
3 years ago
9

Naval intelligence reports that 8 enemy vessels in a fleet of 17 are carrying nuclear weapons. If 6 vessels are randomly targete

d and destroyed, what is the probability that at least 5 vessels transporting nuclear weapons were destroyed? Express your answer as a fraction or a decimal number rounded to four decimal places.
Mathematics
1 answer:
Molodets [167]3 years ago
6 0

Answer: Should be about a 20.4% chance

Step-by-step explanation:

17 times 6 divided by 5

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A certain kind of bacteria multiplies at a rate of 150 percent per hour. When a person’s blood has 45,000,000 of these bacteria,
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Initial number of Bacteria = Ao = 100
Number of Bacteria which make the person ill = A = 45,000,000

Growth rate = r = 150% = 1.50 

The equation model for this situation is:

A= A_{o}(1+r)^{t}

Using the values in above equation, we can write:

45000000=100(1+1.5)^{t}  \\  \\ 
450000=(2.5)^{t} \\  \\ 
log(450000)=log((2.5)^{t})  \\  \\ 
log(450000)=t*log(2.5) \\  \\ 
t= \frac{log(450000)}{log(2.5)} \\  \\ 
t=14.21

This means, the person will fall sick after about 14 hours.
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3 years ago
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A solution to the system y = 2x 7 and x +y= 5? Why or why not​
andrezito [222]

Answer:

given that, y=2×7

y=14

and

x+y=5

x+14=5

x=5-14

x=9

x not equal to 5

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2 years ago
PLS PLS HELP!!!! Write and solve an inequality to find the possible values or x if the area of the
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Answer:

width=2 ft, length=(3x+4)ft

Area of Rectangle=width x length

                             =2ft . (3x+4)ft

                             =6x+8 ft sq

Area of Rectangle <56 ft sq

6x+8 ft sq <56 ft sq

6x  < 56 ft sq - 8 ft sq

6x <  48 ft sq                       Substeracting  8  on both sides

6x/6 < 48 ft sq/6                 Dividing by    6 on both sides  

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Step-by-step explanation:

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Solve the equation to find the value of x.<br> 2(x+3)=18<br> Enter your answer in the box<br> x= __
Yuki888 [10]
2(x + 3) = 18
2x + 6 = 18
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Divide 2
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7 0
3 years ago
Read 2 more answers
Raíz cuadrada de 864
marshall27 [118]

Raíz cuadrada de 864

Para resolver este problema debemos tomar en cuenta los datos que nos dan y la ecuación de una hipérbola. Comencemos con los datos:

The general equation of ellipse is given as, x2a2+y2b2=1 x 2 a 2 + y 2 b 2 = 1 , where, a is length of semi-major axis and b is length of semi-minor axis.

centro: (0,0)

focus : (0, -√28) , (0, √28)

eje conjugado = 2√3

por los focos podemos ver que la hipérbola se dirige hacia el eje y, por lo que debemos tomar la siguiente forma de la ecuación de la parábola:

de los focos podemos obtener que: √28

y del eje conjugado podemos saber que al dividir la longitud del eje conjugado dentro de 2 obtenemos b, así que:

b = √3

podemos utilizar la siguiente fórmula para obtener a:

si despejamos a en la ecuación obtenemos lo siguiente:

ahora podemos sustituir los valores:

a=5

así que media vez conozcamos a, podemos sustituir los datos en la ecuación de la hipérbola así que obtenemos lo siguiente:

si graficamos la hipérbola, queda como en el documento adjunto.

To learn more hipérbola

Visit : brainly.com/question/24223341

#SPJ9

8 0
2 years ago
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