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Nadusha1986 [10]
2 years ago
14

Please help need it due now!!!

Mathematics
1 answer:
ahrayia [7]2 years ago
4 0

Answer:

1) 0.9, 0.99, 0.09, 0.0009

2) 4(2x²+9x)

3) 110

4) $9.50 per pizza

5) 23

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At a local restaurant, the amount of time that customers have to wait for their food is normally distributed with a mean of 18 m
anyanavicka [17]

Answer:

95% of the customers  have to wait between 10 minutes and 26 minutes

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 18 minutes

Standard Deviation, σ = 4 minute

We are given that the distribution of amount of time is a bell shaped distribution that is a normal distribution.

Empirical Formula:

  • Almost all the data lies within three standard deviation from the mean for a normally distributed data.
  • About 68% of data lies within one standard deviation from the mean.
  • About 95% of data lies within two standard deviations of the mean.
  • About 99.7% of data lies within three standard deviation of the mean.

Now, we can write:

10 = 18-2(4) = \mu - 2(\sigma)\\26 = 18+2(4) = \mu + 2(\sigma)

Thus, by empirical formula, 95% of the data lies within two standard deviations of the mean.

Thus, 95% of the customers  have to wait between 10 minutes and 26 minutes

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3 years ago
1) To the nearest tenth of a foot, what is the distance from the wall to
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1) B

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Step-by-step explanation:

Please see the attached picture for the full solution.

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When Ava sat down to read her book, she had already read 54 pages. Forty-five minutes later, she had read a total of 92 pages. L
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Xander rolls two 6-sided number cubes. What is the theoretical probability of rolling an even number on the first cube and a num
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3 years ago
Help i keep getting it wrong :(
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Answer: 65.4

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