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PolarNik [594]
3 years ago
6

The length of time it takes to find a parking space at 9 A.M. follows a normal distribution with a mean of 4 minutes and a stand

ard deviation of 3 minutes.
Sixty percent of the time, it takes more than how many minutes to find a parking space?
Mathematics
1 answer:
DedPeter [7]3 years ago
6 0

Answer:

3.24 minutes

Step-by-step explanation:

Use a calculator or chart to find the z-score.

P(Z > z) = 0.60

P(Z < z) = 0.40

z = -0.253

Find the time associated with the z-score.

z = (x − μ) / σ

-0.253 = (x − 4) / 3

x = 3.24

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Answer:

The answer to your question is      x = \sqrt{50}    or x = 5\sqrt{2}

Step-by-step explanation:

To solve this problem use the Pythagorean theorem because two right triangles are formed.

                    c² = a² + b²

c = 10

a = x

b = x     Because in a square all the sides measure the same.

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- Simplify

                    100 = 2x²

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liubo4ka [24]
<span>The ratio of sides is, 8:10 = 4:5
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</span>
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Step-by-step explanation:

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