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navik [9.2K]
3 years ago
6

I need help dgdghdhddhdsjsjs​

Mathematics
1 answer:
iren2701 [21]3 years ago
3 0

Answer:

- 1.9f - 18

Step-by-step explanation:

- 2.7f + 0.8f - 12 - 6 \\  =  - 1.9f - 18 \\

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What is the sum of the measures of the interior angles of an octagon
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F(x) = 2x3 + 7x2 – 4x – 5
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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
Colt1911 [192]

Answer:

99.7% of customers have to wait between 8 minutes to 30 minutes for their food.

Step-by-step explanation:

We are given the following in the question:

Mean, μ = 18 minutes

Standard Deviation, σ = 4 minutes

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.

Thus, 99.7% of the customers have to wait:

\mu -3\sigma = 18-3(4) = 6\\\mu +3\sigma = 18+3(4) = 30

Thus, 99.7% of customers have to wait between 8 minutes to 30 minutes for their food.

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3 years ago
In the figure, Line a is parallel to line b. If angle 1 = 105º what is the measurement of angle 6?
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75

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angle 4 is 75 because it forms a linear pair with angle 1, and 6 is alternate interior with 4 which makes it equal

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