reginaldboyd28
07.12.2019 •
Mathematics
1. point (−5,8) is reflected across the line = . what are the coordinates of ′? show your work and explain.
2. suppose point (4, −9) is translated according to the rule (, ) → ( + 3, − 2). what are the coordinates of
′? explain.
3. how many lines of symmetry does a regular heptagon have? explain your answer.
4. suppose the point (2,8) is reflected across the −axis and then translated according to the rule (, ) →
(, + 4). what are the coordinates of ′′? show your work and explain.
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Ответ:
The probability would be 0.1193.
We compute the z-score for each end of this interval. For the lower end, 66 inches,
z = (X-μ)/σ = (66-68)/3 = -2/3 = -0.67
For the upper end, 67 inches,
z = (X-μ)/σ = (67-68)/3 = -1/3 = -0.33
we find the area to the left of (lower than) the lower limit is 0.2514. The area to the left of (lower than) the upper limit is 0.3707. To find the area between these, we subtract:
0.3707 - 0.2514 = 0.1193.
Step-by-step explanation: