The International Air Transport Association surveys business travelers to develop quality ratings for transatlantic gateway airp
1 answer:
Answer:
(5.2591, 9.3531)
Step-by-step explanation:
given that the International Air Transport Association surveys business travelers to develop quality ratings for transatlantic gateway airports.
Ratings are from 1 to 10
the readings are
7 7 3 8 4 4 4 5 5 5 5 4 9 10 9 9 8 10 4 5 4 10 10 10 11 4 9 7 5 4 4 5 5 4 3 10 10 4 4 8 7 7 4 9 5 9 4 4 4 4
Mean = 7.3061
Std deviatin = 7.3100
Std error =
95%,confidence interval =
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The inverse of the function is k(x) =
You can find the inverse of any function by switching the k(x) value and the x value. After that, solve for the new k(x). The result will be your inverse function. The step-by-step process is below.
k(x) = 10x + 5 ----> Switch the x and k(x)
x = 10k(x) + 5 ----> Subtract 5 from both sides
x - 5 = 10k(x) ----> Divide both sides by 10.
= k(x) ----> Now switch the order for formatting
k(x) =
And this is your new inverse function.
Answer:
The value of a=4
Step-by-step explanation:
Given the matrix
- A matrix is singular if its determinent is zero.
so solving the matrix B by taking its determinant to get the value a
as according to determinant formula
Therefore, the value of a=4
Answer:
x ≈ - 4.12 , x ≈ 0.12
Step-by-step explanation:
Given
2x² + 8x - 1 = 0 ( add 1 to both sides )
2x² + 8x = 1 ← factor out 2 on the left side
2(x² + 4x) = 1
To complete the square
add/ subtract (half the coefficient of the x- term )² to x² + 4x
2(x² + 2(2)x + 4 - 4) = 1, that is
2(x + 2)² - 8 = 1 ( add 8 to both sides )
2(x + 2)² = 9 ( divide both sides by 2 )
(x + 2)² = ( take the square root of both sides )
x + 2 = ± = ±
= ±
( subtract 2 from both sides )
x = - 2 ± 1.5 , thus
x = - 2 - 1.5 ≈ - 4.12 ( to 2 dec. places )
x = - 2 + 1.5 ≈ 0.12 ( to 2 dec. places )