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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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Step-by-step explanation:

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2 years ago
I need to solve this to get zero can you help?
Alex

Given a right triangle with the side lengths of legs = 9 and 13

For the required angle :

opposite side = 9

adjacent side = 13

so,

\begin{gathered} \tan \theta=\frac{opposite}{adjacent}=\frac{9}{13} \\  \\ \theta=\tan ^{-1}\frac{9}{13}=34.7 \end{gathered}

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1 year ago
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5 0
3 years ago
A $230 pair of shoes is on sale for 20% off at a store in Illinois. Sales Tax in Illinois is 11.5%. How Much Will The shoes end
Zepler [3.9K]
FIND SALE PRICE
= $230 - ($230*20%)
= $230 - $46
= $184

OR

= $230 * (100%-20%)
= $230 * 80%
= $184

*use the method you're most comfortable with or that your teachers prefer

FIND TOTAL WITH TAX
= $184 + ($184 * 11.5%)
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Hope this helps! :)
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