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dusya [7]
4 years ago
14

What is the probability that your name will be drawn first, and NOT replaced , from each bag.?

Mathematics
1 answer:
Alex17521 [72]4 years ago
8 0
2/20 I'm pretty sure
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Which figure has just one line of symmetry?<br><br><br><br> A<br> B<br> C<br> D
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Answer:

D)

Step-by-step explanation:

That isosceles triangle has just one line of symmetry.

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What is the y-intercept of the line that passes through the points (-3, 3) and (7, 5)? Type your answer as a decimal or improper
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A machine in a factory makes 20 gadgets every 1/4 hour. How many gadgets are made every hour?
Hoochie [10]

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80 machines

Step-by-step explanation:

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4 years ago
Karen is starting a career as a professional wildlife photographer and plans to photograph Canadian Geese at one of the staging
balandron [24]

Answer:

$5000*0.816 = $4082

Step-by-step explanation:

It's a strange question, but based on the statement and the question it sounds like it's a poisson distribution:

* For 3 days she was able to get 2 good shots (<em>typical of that time of the year</em>)

* Good shots happen randomly

* Each day is independent of another

Let's call 'p' the probability that she makes a good shot per day

Let's call 'n' the number of days Karen is taking shots.

So, if in 3 days he got 2 good shots and that is typical at that time of the year, then the expected value for the number of good shots (X) is:

E(x)=\frac{2}{3}

For a Poisson distribution E (x)=\lambda\\\lambda= np

So:

\lambda =\frac{2}{3}

For a Poisson distribution the standard deviation is:

\sigma = \sqrt{\lambda}\\\sigma = \sqrt{\frac{2}{3}}

\sigma = 0.816 this is the standard deviation for the number of buentas taken.

So the standard deviation for income is the price of each shot per sigma

$5000*0.816 = $4082, which is the desired response.

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3 years ago
Help, I tried! I tried using PEMDAS, but I can’t figure it out. Please explain this problem.
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Answer:

10

Step-by-step explanation:

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3 years ago
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