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Salsk061 [2.6K]
3 years ago
9

Answers 1-8 ? Please and thankyou.

Mathematics
1 answer:
Licemer1 [7]3 years ago
3 0

I think the radius for #1 is 5.64 and the diameter is 11.28

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2,602,255

Step-by-step explanation:

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Madelyn is in a hot air balloon that has just taken off and is floating above its launching point. Eddie is standing on the grou
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8.9 meters

Step-by-step explanation:

this seems like a problem where you can use the pythagorean theorem:

you know one of the two legs (6m) and  the hypotenuse (9m), you must find the other leg

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400.00 in scientific notation
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Suppose that the time (in hours) required to repair a machine is an exponentially distributed random variable with mean 1/0.41/0
lbvjy [14]

Answer:

a) P(t>3)=0.30

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Step-by-step explanation:

We have a repair time modeled as an exponentially random variable, with mean 1/0.4=2.5 hours.

The parameter λ of the exponential distribution is the inverse of the mean, so its λ=0.4 h^-1.

The probabity that a repair time exceeds k hours can be written as:

P(t>k)=e^{-\lambda t }=e^{-0.4t}

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P(t>3)=e^{-0.4*3}=e^{-1.2}= 0.30

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The exponential distribution has a memoryless property, in which the probabilities of future events are not dependant of past events.

In this case, the conditional probability that a repair takes at least 10 hours, given that it takes more than 9 hours is equal to the probability that a repair takes at least (10-9)=1 hour.

P(t>10|t>9)=P(t>1)

P(k>1)=e^{-0.4*1}=0.67

6 0
3 years ago
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