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pav-90 [236]
3 years ago
12

I realy need some help I put the questions in the attachments

Mathematics
1 answer:
faltersainse [42]3 years ago
5 0
Picture 1: C. y=2x+3
Picture 2: D. y= -5
Picture 3. Graph D
Picture 4. Graph A
Picture 5. Graph A
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Kamila [148]

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please give me brainlest

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Expand x(4x+1) answer for this please
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4x^2 + x

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Which is an equation in slope intercept form of the line that contains the points (7,-9) and (8,-7)
jeyben [28]

Answer:

y=2x-23

Step-by-step explanation:

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3 years ago
he number of surface flaws in plastic panels used in the interior of automobiles has a Poisson distribution with a mean of 0.02
Yakvenalex [24]

Answer:

a) 98.01%

b) 13.53\%

c) 27.06%

Step-by-step explanation:

Since a car has 10 square feet of plastic panel, the expected value (mean) for a car to have one flaw is 10*0.02 = 0.2  

If we call P(k) the probability that a car has k flaws then, as P follows a Poisson distribution with mean 0.2,

P(k)= \frac{0.2^ke^{-0.2}}{k!}

a)

In this case, we are looking for P(0)

P(0)= \frac{0.2^0e^{-0.2}}{0!}=e^{-0.2}=0.9801=98.01\%

So, the probability that a car has no flaws is 98.01%

b)

Ten cars have 100 square feet of plastic panel, so now the mean is 100*0.02 = 2 flaws every ten cars.

Now P(k) is the probability that 10 cars have k flaws and  

P(k)= \frac{2^ke^{-2}}{k!}

and  

P(0)= \frac{2^0e^{-2}}{0!}=0.1353=13.53\%

And the probability that 10 cars have no flaws is 13.53%

c)

Here, we are looking for P(1) with P defined as in b)

P(1)= \frac{2^1e^{-2}}{1!}=2e^{-2}=0.2706=27.06\%

Hence, the probability that at most one car has no flaws is 27.06%

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3 years ago
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Anni [7]

Answer:

D

Look at the picture. :)

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2 years ago
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