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Crazy boy [7]
3 years ago
11

Suppose that the time (in hours) required to repair a machine is an exponentially distributed random variable with parameter λ=0

.5. What is (a) the probability that a repair time exceeds 9 hours?

Mathematics
1 answer:
barxatty [35]3 years ago
6 0

Answer: 0.01111

Step-by-step explanation: find attached picture for explanation

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Determine whether the geometric series 27 + 18 + 12 + 8 + ... converges or diverges, and identify the sum if it exists.
Ne4ueva [31]

The given geometric series as shown in the question is seen to; Be converging with its' sum as 81

<h3>How to identify a converging or diverging series?</h3>

We are given the geometric series;

27 + 18 + 12 + 8 + ...

Now, we see that;

First term; a₀ = 27

Second Term; a₁ = 2(27/3)

Third term; a₂ = 2²(27/3²)

Fourth term; a₃ = 2³(27/3³)

Thus, the formula is;

2ⁿ(27/3ⁿ)

Applying limits at infinity gives;

2^(∞) * (27/3^(∞)) = 0

Since the  terms of the series tend to zero, we can affirm that the series converges.

The sum of an infinite converging series is:

S_n = a/(1 - r)

S_n = 27/(1 - (2/3)

S_n = 81

Read more about converging or diverging series at; brainly.com/question/15415793

#SPJ1

6 0
1 year ago
Can someone plzzzzz help me!!!
laiz [17]

Answer:

No

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Dinosaurs have been extinct for about 6.5 X 10 years, while Neanderthals have been extinct for about 30 x 109 years. About how m
Oxana [17]

Answer: 1,000 times longer

Step-by-step explanation: Dino have been extinct for about 60 million years ago, and Neanderthals have been extinct for about 40,000 years.

60,000,000 divided by 40,000 is 1500 so 1000 times longer (sorry if im wrong i'm new)

6 0
2 years ago
WILL MARK BRAINLIEST
Mariulka [41]
Answer is B .....hope this help
8 0
3 years ago
Read 2 more answers
Select all that apply.
Anarel [89]
So the answer your looking for is X=2
5 0
2 years ago
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