Answer:
Step-by-step explanation:
It is given that
Using the given hyperbolic functions, we get
Differentiate both sides with respect to x.
Hence, .
Answer:
Confidence Interval : 2.72% < p < 6.48%
Step-by-step explanation:
Number of randomly selected deaths = 669
Number of deaths caused by accident = 31
z-score for 98% confidence level = 2.326
Confidence Interval : 0.046 - 0.0188 < p < 0.046 + 0.0188
: 0.0272 < p < 0.0648
: 2.72% < p < 6.48%
Hence, Confidence Interval : 2.72% < p < 6.48%
Start with expressions in blue boxes:
1st column)
2nd column)
3rd column)
You have 6 expressions. Consider all them:
1. - 3rd column;
2. - 1st column;
3. - 2nd column;
4. - 1st column;
5. - 2nd column;
6. - 3rd column.
Answer:
120 meters
Step-by-step explanation:
16 + 82 = 98
98 + 22 = 120
1. Plot the points in the coordinate axes as in the attached picture.
2. The trapezoid is isosceles. This can be easily checked by calculating WZ and XY by the Pythagorean theorem. Or simply by the picture.
The midpoint of W and X is at (1, 2)
The midpoint of Z and Y is at (1, -1)
the line of symmetry is the line passing through these 2 midpoints. This line is the vertical line through x=1.
Answer: axis of symmetry: line with equation x=1
justification: the pairs W,X and Z,Y are symmetrical with respect to this line