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Mrac [35]
3 years ago
11

Please help! thank you!

Mathematics
1 answer:
Lina20 [59]3 years ago
3 0

Answer:

I believe the answer is c not a hundred percent sure

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What is the answer for this question? 6x^2 - 35x + 49 ( factorising quadratics btw)
tino4ka555 [31]

Answer:

x=7/2  x=7/3

Step-by-step explanation:

5 0
3 years ago
Suppose the number of messages that an inbox receives may be modeled by a Poisson distribution. If the average number of message
docker41 [41]

Answer:

0.36427

Step-by-step explanation:

Mean = λ = 18 messages per hour

P(X = x) = (e^-λ)(λ⁻ˣ)/x!

P(X ≤ x) = Σ (e^-λ)(λ⁻ˣ)/x! (Summation From 0 to x)

But the probability required is that the messages thay come in an hour is between 15 and 20, that is, P(15 < X < 20)

P(15 < X < 20) = P(X < 20) - P(X ≤ 15)

These probabilities will be evaluated using a cumulative frequency calculator.

P(X < 20) = 0.65092

P(X ≤ 15) = poissoncdf(18, 15) = 0.28665

P(15 < X < 20) = P(X < 20) - P(X ≤ 15) = 0.65092 - 0.28665 = 0.36427.

You can use the Poisson distribution calculator here

https://stattrek.com/online-calculator/poisson.aspx

4 0
3 years ago
True or False?
dsp73

Answer:

true

Step-by-step explanation:

 i go to k12 i did this test

6 0
2 years ago
Please answer it for me or show me how to do it? I will mark you branliast answer !!
klasskru [66]

Answer:

25

Step-by-step explanation:

If HI and IJ are both the same and meet at the same point, the triangles would be the same.

7 0
3 years ago
Krystal will be 31 years old in thirteen<br> years. How old is she now?
pogonyaev
Answer:

She’s 18

Step by step explanation:

18+13=31
7 0
2 years ago
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