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lys-0071 [83]
2 years ago
7

The answer to this question

Mathematics
1 answer:
gtnhenbr [62]2 years ago
7 0

<u>the</u><u> </u><u>value</u><u> </u><u>of</u><u> </u><u>x</u><u> </u><u>is</u><u> </u><u>45</u><u> </u><u>degree</u><u> </u>

<u>134-180</u><u>=</u><u>45</u><u> </u>

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The International Air Transport Association surveys business travelers to develop quality ratings for transatlantic gateway airp
yKpoI14uk [10]

Answer:

Confidence Interval in 95% confidence level for the quality rating is (6.06,7.46)

Step-by-step explanation:

Confidence Interval can be calculated using the formula M±ME where

  • M is the mean of the sample
  • ME is the margin of error in a given confidence level

Using the sample obtained from 50 business travelers we get

  • Mean of the sample is 6.76
  • standard deviation of the sample is 2.526

Margin of error (ME) around the mean using the formula

ME=\frac{z*s}{\sqrt{N} } where

  • z is the corresponding statistic in 95% confidence level (1.96)
  • s is the standard deviation of the sample (2.526)
  • N is the sample size (50)

Using the numbers in the formula we get:

ME=\frac{1.96*2.526}{\sqrt{50} } ≈ 0.70

Then the confidence interval becomes 6.76±0.70

6 0
3 years ago
Rachel can make 16 cards in 5 minutes. How many cards can she make in 1 hour
Ksivusya [100]

Answer:

192 cards

Step-by-step explanation:

multiply the 16 cards by 12, 12x5=60=1 hour

8 0
3 years ago
What is the solution set for - 4x + 10 = 5x + 55?
Lina20 [59]

Answer:

x=−5

Step-by-step explanation:

Step 1: Subtract 5x from both sides.

−4x+10−5x=5x+55−5x

−9x+10=55

Step 2: Subtract 10 from both sides.

−9x+10−10=55−10

−9x=45

Step 3: Divide both sides by -9.

−9x

−9

=

45

−9

x=−5

Answer:

x=−5

4 0
4 years ago
T times 3/4 for t =8/9
denis-greek [22]
Because T = 8/9, 3/4 • T is 3/4 • 8/9 = 2/3
6 0
4 years ago
Ezra planted 10 plants and the depth of each plant (in inches) is shown below.
BaLLatris [955]
D. 3 1/10
They add up to 31 and then you divide them by 10 you get 3.10
8 0
3 years ago
Read 2 more answers
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