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Explanation & Answer
BD/CE = AD/AE
5/7 = x/(x+2.7)
5(x+2.7) = 7x
5x + 13.5 = 7x
2x = 13.5
X = 6.75
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statistics for nursing research
Details: Complete Exercise 18 in Statistics for Nursing Research: A Workbook for Evidence-Based Practice, and submit as d ...
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9.06 Conic Sections Unit Exam
Question 1
Find the distance between points (1, 2) and (5, 9).
Question 2
Find the distance between points (-3, 8) and (-5, 1).
Question 3
Find the midpoint between points (-4, 2) and (2, -2).
(1, -1)
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Find the midpoint between points (-2, 3) and (-4, -3). (3, 1) (-3, -1) (0, -3) (-3, 0) 2 points
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The equation represents a __________. parabola circle hyperbola ellipse 2 points
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Question 7
What is the equation of the following graph?
Question 8
What is the directrix of the following graph?
Question 9
What is the equation of the following graph?
Question 10
What is the equation of a parabola with a directrix x = 8 and focus (-8, 0).
Question 11
What is the equation of a parabola with vertex (0, 0) and directrix y = 12.
Question 12
What is the equation of a parabola with a vertex at (0, 0) and a focus at (0, 6).
Question 13
What is the axis of symmetry for the following parabola? y = 0 x = 0 y = -1 x = -1 2 points
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What is the center of the following graph?
Question 16
What is the radius of the following graph?
Question 17
What is the equation of the following graph?
Question 18
What is the equation of a circle with a center at (1, 3) and a radius of 6?
Question 19
What is the equation of a circle with a center at (0, 0) and a radius of 4.5?
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What is the equation of a circle with a center at (-4, -8) and a radius of 1.9?
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What is the length of the major axis of the following graph? 6 12 8 10 2 points
Question 23
What is the center of the following graph?
Question 24
What is the equation of the following graph?
Question 25
What are the vertices of the following graph?
Question 26
Write the equation of an ellipse with a major axis of length 8 and co-vertices (0, 3) and (0, -3).
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Write the equation of an ellipse with vertices (0, 12) and (0, -12) and co-vertices (2, 0) and (-2, 0).
Question 28
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What is the equation of the following graph?
Question 32
What is the center of the following graph?
Question 33
What is the equation of the following graph?
Question 34
Write the equation of a hyperbola with vertices at (-3, 0) and (3, 0) and co-vertices (0, 5) and (0, -5).
Question 35
Write the equation of a hyperbola with vertices at (-4, 0) and (4, 0) and co-vertices (0, 5) and (0, -5).
Question 36
Write the equation of a hyperbola with vertices (3, -1) and (3, -9) and co-vertices (-6. -5) and (12, -5).
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statistics for nursing research
Details: Complete Exercise 18 in Statistics for Nursing Research: A Workbook for Evidence-Based Practice, and submit as d ...
statistics for nursing research
Details: Complete Exercise 18 in Statistics for Nursing Research: A Workbook for Evidence-Based Practice, and submit as directed by the instructor. Name:____________________________________________ Class: ____________________ Date: _________________________________________________________________________________ □ EXERCISE 18 Questions to be Graded 1.Assuming that the distribution is normal for weight relative to the ideal and 99% of the male participants scored between (–53.68, 64.64), where did 95% of the values for weight relative to the ideal lie? Round your answer to two decimal places. 2.Which of the following values from Table 1 tells us about variability of the scores in a distribution? a.60.22 b.11.94 c.22.57 d.53.66 3.Assuming that the distribution for General Health Perceptions is normal, 95% of the females’ scores around the mean were between what values? Round your answer to two decimal places. 4.Assuming that the distribution of scores for Pain is normal, 95% of the men's scores around the mean were between what two values? Round your answer to two decimal places. 5.Were the body image scores significantly different for women versus men? Provide a rationale for your answer. 6.Assuming that the distribution of Mental Health scores for men is normal, where are 99% of the men's mental health scores around the mean in this distribution? Round your answer to two decimal places. 7.Assuming that the distribution of scores for Physical Functioning in women is normal, where are 99% of the women's scores around the mean in this distribution? Round your answer to two decimal places. 8.Assuming that the distribution of scores is normal, 99% of HIV-positive body image scores around the mean were between what two values? Round your answer to two decimal places. 9.Assuming that the distribution of scores for Role Functioning is normal, 99% of the men's scores around the mean were between what values? Round your answer to two decimal places. 10.What are some of the limitations of this study that decrease the potential for generalizing the findings to the target population? (Grove 137-138) Grove, Susan K. Statistics for Health Care Research: A Practical Workbook. W.B. Saunders Company, 022007. VitalBook file. The citation provided is a guideline. Please check each citation for accuracy before use. Excise 33 Use MS Word to complete "Questions to be Graded: Exercise 33" in Statistics for Nursing Research: A Workbook for Evidence-Based Practice. Submit your work in SPSS by copying the output and pasting into the Word document. In addition to the SPSS output, please include explanations of the results where appropriate. Name:____________________________________________ Class: ____________________ Date: _________________________________________________________________________________ □ EXERCISE 33 Questions to be Graded 1.What is the mean difference from baseline to week 24 for total cholesterol? 2.What is the mean difference from baseline to week 24 for bicarbonate? 3.Between what two numbers does the true mean for triglycerides exist 95% of the time, which is the 95% confidence interval (CI)? 4.Between what two numbers does the true mean for creatinine exist 95% of the time, which is the 95% confidence interval (CI)? 5.Did the HDL cholesterol value change significantly from baseline to week 24? Is this result clinically significant? 6.In a study, the sample size was N = 150, SD = 9, and the mean = 48. Calculate the SEM and the 95th confidence interval for this study. 7.In Table 2, which parameter or variable has the smallest confidence interval? 8.The Atkins Center provided funding and training for the research staff. Would this have an effect on the outcomes of this study? Provide a rationale for your answer. 9.In this study, 51 subjects were enrolled, but only 41 completed it. Identify some possible reasons for the sample mortality of 10 subjects. 10.This was an uncontrolled study. Identify ways to improve the control of the study and thus strengthen the study design. (Grove 247-250) Grove, Susan K. Statistics for Health Care Research: A Practical Workbook. W.B. Saunders Company, 022007. VitalBook file. The citation provided is a guideline. Please check each citation for accuracy before use.
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Find the distance between points (1, 2) and (5, 9).
Question 2
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Question 1
Find the distance between points (1, 2) and (5, 9).
Question 2
Find the distance between points (-3, 8) and (-5, 1).
Question 3
Find the midpoint between points (-4, 2) and (2, -2).
(1, -1)
(0, -1)
(-1, 0)
(1, 0)
2 points
Question 4
Find the midpoint between points (-2, 3) and (-4, -3). (3, 1) (-3, -1) (0, -3) (-3, 0) 2 points
Question 5
The equation represents a __________. parabola circle hyperbola ellipse 2 points
Question 6
What is the directrix of the following graph? y = -1 y = 1 x = 1 x = -1 2 points
Question 7
What is the equation of the following graph?
Question 8
What is the directrix of the following graph?
Question 9
What is the equation of the following graph?
Question 10
What is the equation of a parabola with a directrix x = 8 and focus (-8, 0).
Question 11
What is the equation of a parabola with vertex (0, 0) and directrix y = 12.
Question 12
What is the equation of a parabola with a vertex at (0, 0) and a focus at (0, 6).
Question 13
What is the axis of symmetry for the following parabola? y = 0 x = 0 y = -1 x = -1 2 points
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What is the equation of the following graph? x2 - y2 = 10 x2 - y2 = 100 x2 + y2 = 10 x2 + y2 = 100 2 points
Question 15
What is the center of the following graph?
Question 16
What is the radius of the following graph?
Question 17
What is the equation of the following graph?
Question 18
What is the equation of a circle with a center at (1, 3) and a radius of 6?
Question 19
What is the equation of a circle with a center at (0, 0) and a radius of 4.5?
Question 20
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The point of symmetry for this circle is (0, 0). True False 2 points
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What is the center of the following graph?
Question 24
What is the equation of the following graph?
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What are the vertices of the following graph?
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Question 27
Write the equation of an ellipse with vertices (0, 12) and (0, -12) and co-vertices (2, 0) and (-2, 0).
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Write the equation of an ellipse centered at the origin with foci at (0, -3) and (0, 3) and a major axis of 10.
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Ellipses have symmetry through both their minor and major axes. True False 2 points
Question 30
What are the asymptotes of the following graph? 2 points
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What is the equation of the following graph?
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What is the center of the following graph?
Question 33
What is the equation of the following graph?
Question 34
Write the equation of a hyperbola with vertices at (-3, 0) and (3, 0) and co-vertices (0, 5) and (0, -5).
Question 35
Write the equation of a hyperbola with vertices at (-4, 0) and (4, 0) and co-vertices (0, 5) and (0, -5).
Question 36
Write the equation of a hyperbola with vertices (3, -1) and (3, -9) and co-vertices (-6. -5) and (12, -5).
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The symmetry of a hyperbola with a center at (h, k) only occurs at y = k and x = h. True False
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