What is the implication of the (sometimes extreme) redshifts of nearly all galaxies observed in the night sky? If a good representative of a data set of galaxies shows us that the galaxy seems to be receding at a rate of 4000 km/s and the distance to that galaxy is determined to be 20 megaparsecs (Mpc), what would the Hubble constant of that universe be? Again, note that this is just an example, not the Hubble constant found for our universe. Please remember that you must include units in your final answer.

What is the implication of the (sometimes extreme) redshifts of nearly all galaxies observed in the night sky? If a good representative of a data set of galaxies shows us that the galaxy seems to be receding at a rate of 4000 km/s and the distance to that galaxy is determined to be 20 megaparsecs (Mpc), what would the Hubble constant of that universe be? Again, note that this is just an example, not the Hubble constant found for our universe. Please remember that you must include units in your final answer.

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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Questions 2-5. Consider the data in the table. Absolute Relative Percent Time Value Change Change Increase 13.60 1 14.85 2 16.10 3 17.35 4 18.60 19.85 Find the model for this data. O y =1.25 x + 13.60 y = 13.60 * (1.25)^t y= 13.60 x + 1.25 y = 1.25^t LO
QUESTION 3 The Zika virus (ZIKV) is a mosquito-borne disease, which is transmitted by some species of Aedes mosquito, particularly Aedes aegypti. The adult life span of Aedes aegypti can range from two weeks to a month depending on environmental conditions. An experiment to investigate the effects of temperature on Aedes aegypti measures the lifespan of a sample of six individual mosquitoes (in days) to be 20.3 18.7 17 18.2 25.4 17.6 The sample standard deviation for a sample of N measurements is given by the formula E (x - x)? ON-1= N-1 Calculate the sample standard deviation of this sample in days, expressed to two significant figures.
QUESTION 7 A graduate school program in Statistics will only admit students with GRE quan- titative scores in the top 20%. GRE scores from previous years are found to be approximately Gaussian with median 158 and standard deviation 3. What is the lowest GRE score it will accept? 158.6 155.47 140.40 160.54
Question 6 of 14 Identify the reasons the following statements are incorrect. Not all reasons will be used. Researchers found that the correlation between the number of vacation days available per year and the employees' years of employment is r = 0.65 days. The correlation between the average lifespans of animals and the animals' species is r = -0.78. The number of steps people take while walking and the distance they walk are highly correlated (r = 1.12). The correlation between average gas mileage in miles per gallon and average highway speeds in miles per hour differs from the correlation between average gas mileage in miles per gallon and average highway speeds in kilometers per hour. Answer Bank Correlation should be between -1 and 1. Correlation should depend on units. Correlation should be greater than 0. Correlation should not depend on units. One of the variables should be categorical. Both variables should be numerical.
I am very lost. I am not sure how to solve this problem.
statistic question 3
question 9
Question 2 A transdermal patch is designed to ease the Alzheimer's symptoms. These patches work by releasing a controlled amount of Exelon drugs through skin, which help to avoid gastrointestinal side effects such as nausea and vomiting if consumed as pills. The data below shows the mass flux of Exelon drug being delivered through the skin as a function of time: Time, / (Hour) Flux, (mg/(cm³ hour)) 4 16.5 8 11 12 16 5.5 3.5 20 2.5 Use the fourth-order Lagrange's interpolating polynomial to estimate the mass flux of Exelon drug being delivered through the skin after 15 hours of using the patch.
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Question 8 of 8 For the past seven years, the sales of Departments A, B, and C have maintained a relatively stable ratio of 4 :2:1. Department A is predicting that their sales will be $500,000 next year. Based on their past sales ratio, what sales would be predicted for Department B?
QUESTION 8 A graduate school program in Statistics will only admit students with GRE quan- titative scores in the top 20%. GRE scores from previous years are found to be approximately Gaussian with median 158 and standard deviation 3. Using the Empirical Rule, approximately what percentage of GRE scores fall between 152 and 164? About 99.7% of GRE scores fall between 152 and 164. About 50% of GRE scores fall between 152 and 164. About 95% of GRE scores fall between 152 and 164. O About 68% of GRE scores fall between 152 and 164.