Description
solve each of follow
1. 2x/x^2-4 + 1/x-2 = 2/x+2
2. 7x/2 - 3/x = 7x^2-6/2x
3. 2/8 + 3/4 = x/5
4. x + 3/x =12/x
x/x-8 + 6/x-2 = x^2/x^2 - 10x + 16
the sum of 1/4 a number, 1/5 of the number, and 1/6 of the number is 148.
find the number.
if a farmer can plow a field In 5 days and his neighbor can plow the same field in 3 days, how long will it take the two working together to plow the field?
User generated content is uploaded by users for the purposes of learning and should be used following Studypool's honor code & terms of service.
Explanation & Answer
Review
Review
Anonymous
I use Studypool every time I need help studying, and it never disappoints.
Studypool
4.7
Trustpilot
4.5
Sitejabber
4.4
24/7 Homework Help
Stuck on a homework question? Our verified tutors can answer all questions, from basic math to advanced rocket science!
Most Popular Content
Circular Functions
If point P is located at on the unit circle, what is sin Θ and cos Θ?A.B.C.D.If point P is located at on the unit circ ...
Circular Functions
If point P is located at on the unit circle, what is sin Θ and cos Θ?A.B.C.D.If point P is located at on the unit circle, what is sin Θ and cos Θ?A.B.C.D.Find the value of cos 420°.A.B.C.D.Which of the following is equal to sin?A.B.C.D.What is the period of the function shown below?A.B.C.D.What is the period of the function shown below?A.B.C.D.Which of the following is equal to cos 440°?cos 620°cos 350°cos 260° cos 80°Which of the following functions is not periodic? Assume that no function has a period greater than 2π.A.B.C.D.When a guitar string is plucked, it is displaced from a fixed point in the middle of the string and vibrates back and forth, producing a musical tone. The exact tone depends on the frequency, or number cycles per second, that the string vibrates. To produce an G, the frequency is 390 cycles per second, or 390 hertz. What is the period of this function?6/5 seconds0.02 seconds0.0025 seconds11.3 secondsIn a certain area of forested land, the population of rabbits R increases and decreases periodically throughout the year. If the population can be modeled by, where d represents the dth day of the year, what is the population on the 300th day of the year?132 rabbits220 rabbits532 rabbits620 rabbits
CU Educational Attainment Differences in First & Second Gen Hispanics & Asians Discussion
In this chapter, we examined the difference in educational attainment between first- a ...
CU Educational Attainment Differences in First & Second Gen Hispanics & Asians Discussion
In this chapter, we examined the difference in educational attainment between first- and second-generation Hispanic Americans and Asian Americans based on the proportion of each group with a bachelor’s degree. We present additional data from the Pew Research Center’s 2013 report, measuring the percentage of each group that owns a home (Frankfort-Nachmias, & Leon-Guerrero, 2018, p. 231).First-Generation Hispanic Americans (N = 899), 43% own a homeSecond-Generation Hispanic Americans (N = 351), 50% own a homeFirst-Generation Asian Americans (N = 2,684), 58% own a homeSecond-Generation Asian Americans (N = 566), 51% own a homeSource: Pew Research Center, Second-Generation Americans: A Portrait of the Adult Children of Immigrants. Pew Research Center, Washington, D.C. February 7, 2013. http://www.pewsocialtrends.org/2013/02/07/second-generation-americans/Test whether there is a significant difference in the proportion of homeowners between first- and second-generation Hispanic Americans. Set alpha at 0.05.Test whether there is a significant difference in the proportion of homeowners between first- and second-generation Asian Americans. Set alpha at 0.01.Reference: Frankfort-Nachmias, C., & Leon-Guerrero, A. (2018). Social statistics for a diverse society (8th ed.). Thousand Oaks, CA: SAGE Publications, Inc.
Question 1
3 Points
Is there a significant difference between first-and second-generation Hispanic American populations?
Yes
No
Question 2 3 Points What is the difference? -2.33 2.33 0.0198 0.07 Question 3 2 Points Is there a significant difference between first-and second-generation Asian populations?
Yes
No
Question 4 2 Points What is the difference? 3.50 -3.50 0.0004 0.07
In 2016, the Pew Research Center surveyed 1,799 white and 1,001 black Americans about their views on race and inequality. Pew researchers found “profound differences between black and white adults in their views on racial discrimination, barriers to black progress and the prospects for change.” White and black respondents also disagreed about the best methods to achieve racial equality. For example, 34% of whites and 41% of blacks said that “bringing people of different racial backgrounds together to talk about race” would be a very effective tactic for groups striving to help blacks achieve equality.Test whether the proportion of white respondents who support this tactic is significantly less than the proportion of black respondents.
Question 5 2 Points What is the null hypotheses? π₁ ≠ π₂ π₁ = π₂ μ1 = μ2 μ1 ≠ μ2 Question 6 2 Points What is the research hypotheses?
π₁ ≠ π₂
π₁ = π₂
μ1 = μ2
μ1 ≠ μ2
Question 7 2 Points Calculate the Z statistic and test the hypothesis at the 0.05 level. What is the Z Statistic?
3.50
-3.50
0.0004
0.07
Question 8 2 Points What is your decision (step 5 in hypothesis testing)? Do you accept or reject the null hypothesis? Accept Reject
We compare the proportion who indicated that it was “very important” to be born in this country to be American for two GSS 2014 groups: respondents (1) born in the United States (native born) and (2) not born in the United States (foreign born). Test the research hypothesis that a higher proportion of native-born respondents than foreign-born respondents indicated being born in the United States was “very important” to be American. Set alpha at 0.05.
Question 9 2 Points Do you accept or reject the null hypothesis? Accept Reject
Need math help with a composition
Let D be the set of all calendar dates from 4/30/1789 to 9/25/2014.
Let P be the set of names of U.S. presidents.
Let ...
Need math help with a composition
Let D be the set of all calendar dates from 4/30/1789 to 9/25/2014.
Let P be the set of names of U.S. presidents.
Let F be the set of names of first ladies of the U.S.
Consider the following two functions press : D ⇒ P where pres(d) is the name of the president of the U.S. on date d (the incumbent on inauguration days, to avoid ambiguity) and lady : P ⇒ F where lady(p) is the name of the first lady of the U.S. during the presidency of president P.
1. Can the composition pres ° lady be defined? What about lady ° pres ?2. Which of the following functional inverses exist and which do not?
pres-1, lady-1, (lady°pres)-1, (pres°lady)-1 (the -1 should be in superscript)
Gentry High School Survival Guide to Created a Book Around Algebra Questions
My Algebra Survival Guide Your mission if you chose is to create a "How to Book" with the concepts or ideas we have studie ...
Gentry High School Survival Guide to Created a Book Around Algebra Questions
My Algebra Survival Guide Your mission if you chose is to create a "How to Book" with the concepts or ideas we have studied this year. You must choose at least 10 out of the list to complete the book. How you complete the book is up to you. Some suggestions might be: a comic strip, cartoons, pictures, or another way of your choice. Make sure you make this visually interesting and mathematically sound. Requirements: -Must use at least 2 equations or word problem per each concept -Must have the correct solution for each problem - Must have a cover page and a table of contents - Must have at least 1 page for each concept for a total of 12 pages - Must be neat and accurate. Topics to Pick From: Absolute Values Coordinate Plane Domain and Range Exponent Rules Factoring Function Notation Graphing Linear Equations Graphing Inequalities Inequalities Parallel and Perpendicular Polynomials Quadratics Solving 1, 2, & multi-step equations Systems of Equations The Number System If you think of a topic that I left off of this list that you would like to include, please ask before just doing it. Most likely, I will accept it, but get permission first! . Name: Rubric: Skill Emerging Developing Proficient Fluent Basic Understanding (6 pts) Followed no directions Following Directions (12pts) Followed 25% directions (18pts) (24pts) Followed half Followed the directions 75% of directions (30pts) Followed all directions Problems Solutions 8 Solutions 12 Solutions 16 Less than 4 Solutions No Creativity Solutions Creative Creativity All 20 Problems All 20 Solutions The best I can do Complete Cover page and TOC Some Half creativity imagination | Half sloppy Partially complete cover Page/TOC 5-6 errors 3-4 errors Cover No Cover Page/Table Ipage/TOC of Contents Accuracy 1-2 Errors No Errors 7 or more errors. Time use Neatness Not neat Somewhat neat Half pictures Some pictures Visuals to go No pictures with each problems Presentation Refuses to present Missing some pictures Turned in on time Takes Pride in his/her work Every problem has a picture Presents accurately Presents problem(s) inaccurately 300 ILL MILL TITIPA-TITTAMIM T
STA3215CBE Rasmussen Analysis with Correlation and Regression Assignment
CompetencyDetermine and interpret the linear correlation coefficient, and use
linear regression to find a best fit line ...
STA3215CBE Rasmussen Analysis with Correlation and Regression Assignment
CompetencyDetermine and interpret the linear correlation coefficient, and use
linear regression to find a best fit line for a scatter plot of the data
and make predictions.ScenarioAccording to the U.S. Geological Survey (USGS), the probability of a
magnitude 6.7 or greater earthquake in the Greater Bay Area is 63%,
about 2 out of 3, in the next 30 years. In April 2008, scientists and
engineers released a new earthquake forecast for the State of California
called the Uniform California Earthquake Rupture Forecast (UCERF).As a junior analyst at the USGS, you are tasked to determine whether
there is sufficient evidence to support the claim of a linear
correlation between the magnitudes and depths from the earthquakes. Your
deliverables will be a PowerPoint presentation you will create
summarizing your findings and an excel document to show your work.Concepts Being Studied
Correlation and regression
Creating scatterplots
Constructing and interpreting a Hypothesis Test for Correlation using r as the test statistic
You are given a spreadsheet that contains the following information:
Magnitude measured on the Richter scale
Depth in km
Using the spreadsheet, you will answer the problems below in a PowerPoint presentation.What to SubmitThe PowerPoint presentation should answer and explain the following questions based on the spreadsheet provided above.
Slide 1: Title slide
Slide 2: Introduce your scenario and data set including the variables provided.
Slide 3: Construct a scatterplot of the two
variables provided in the spreadsheet. Include a description of what you
see in the scatterplot.
Slide 4: Find the value of the linear correlation coefficient r and the critical value of r using α = 0.05. Include an explanation on how you found those values.
Slide 5: Determine whether there is sufficient
evidence to support the claim of a linear correlation between the
magnitudes and the depths from the earthquakes. Explain.
Slide 6: Find the regression equation. Let the predictor (x) variable be the magnitude. Identify the slope and the y-intercept within your regression equation.
Slide 7: Is the equation a good model? Explain.
What would be the best predicted depth of an earthquake with a magnitude
of 2.0? Include the correct units.
Slide 8: Conclude by recapping your ideas by summarizing the information presented in context of the scenario.
Along with your PowerPoint presentation, you should include your Excel document which shows all calculations.
Similar Content
Matlab-Simulink problem
Matlab-Simulink problem
...
Please provide research article and reference for both question. 350 wordseachqu
How would you explain the analysis of variance, assuming
that your audience has not had a statistics class before?
What...
5-4 Textbook Assignment: Homework Problems
Complete the Chapters 11 and/or 13 textbook homework assigned by your instructor. Please check the announcements area for ...
Absoulute change and %
find the absoulute change and % of 2633and 1325...
I need help with my Prealgebra homework
1.) The lengths of the sides of a triangle are x+1,3x+5, and 5x. If it’s perimeter is 60, find the lengths of the side...
Math Question-simple interest
How much interest is earned if you invest $20,000 for 4 months at 4.25% simple interest rate?...
R Codes Used For The Computer Problems
U.S T BILLS for march 2007 were obtained with time to maturity 1-month, 3-month, 6-month, 1-year,2-year,3-year,5-year,7-ye...
Creating A Statistical Research Plan
Reflection on Thought Processes Concerning the Utilization of Parametric and NonParametric Statistics in Psychological Res...
Attachment 1 56
...
Related Tags
Book Guides
Narrative of the Life of Frederick Douglass
by Frederick Douglass
Macbeth
by William Shakespeare
Harry Potter and the Sorcerers Stone
by J. K. Rowling
Twelve Years A Slave
by Solomon Northrup
Homo Deus
by Yuval Noah Harari
Too Much and Never Enough
by Mary L. Trump
Girl in Translation
by Jean Kwok
Freakonomics
by Stephen J. Dubner and Steven D. Levitt
White Fang
by Jack London
Get 24/7
Homework help
Our tutors provide high quality explanations & answers.
Post question
Most Popular Content
Circular Functions
If point P is located at on the unit circle, what is sin Θ and cos Θ?A.B.C.D.If point P is located at on the unit circ ...
Circular Functions
If point P is located at on the unit circle, what is sin Θ and cos Θ?A.B.C.D.If point P is located at on the unit circle, what is sin Θ and cos Θ?A.B.C.D.Find the value of cos 420°.A.B.C.D.Which of the following is equal to sin?A.B.C.D.What is the period of the function shown below?A.B.C.D.What is the period of the function shown below?A.B.C.D.Which of the following is equal to cos 440°?cos 620°cos 350°cos 260° cos 80°Which of the following functions is not periodic? Assume that no function has a period greater than 2π.A.B.C.D.When a guitar string is plucked, it is displaced from a fixed point in the middle of the string and vibrates back and forth, producing a musical tone. The exact tone depends on the frequency, or number cycles per second, that the string vibrates. To produce an G, the frequency is 390 cycles per second, or 390 hertz. What is the period of this function?6/5 seconds0.02 seconds0.0025 seconds11.3 secondsIn a certain area of forested land, the population of rabbits R increases and decreases periodically throughout the year. If the population can be modeled by, where d represents the dth day of the year, what is the population on the 300th day of the year?132 rabbits220 rabbits532 rabbits620 rabbits
CU Educational Attainment Differences in First & Second Gen Hispanics & Asians Discussion
In this chapter, we examined the difference in educational attainment between first- a ...
CU Educational Attainment Differences in First & Second Gen Hispanics & Asians Discussion
In this chapter, we examined the difference in educational attainment between first- and second-generation Hispanic Americans and Asian Americans based on the proportion of each group with a bachelor’s degree. We present additional data from the Pew Research Center’s 2013 report, measuring the percentage of each group that owns a home (Frankfort-Nachmias, & Leon-Guerrero, 2018, p. 231).First-Generation Hispanic Americans (N = 899), 43% own a homeSecond-Generation Hispanic Americans (N = 351), 50% own a homeFirst-Generation Asian Americans (N = 2,684), 58% own a homeSecond-Generation Asian Americans (N = 566), 51% own a homeSource: Pew Research Center, Second-Generation Americans: A Portrait of the Adult Children of Immigrants. Pew Research Center, Washington, D.C. February 7, 2013. http://www.pewsocialtrends.org/2013/02/07/second-generation-americans/Test whether there is a significant difference in the proportion of homeowners between first- and second-generation Hispanic Americans. Set alpha at 0.05.Test whether there is a significant difference in the proportion of homeowners between first- and second-generation Asian Americans. Set alpha at 0.01.Reference: Frankfort-Nachmias, C., & Leon-Guerrero, A. (2018). Social statistics for a diverse society (8th ed.). Thousand Oaks, CA: SAGE Publications, Inc.
Question 1
3 Points
Is there a significant difference between first-and second-generation Hispanic American populations?
Yes
No
Question 2 3 Points What is the difference? -2.33 2.33 0.0198 0.07 Question 3 2 Points Is there a significant difference between first-and second-generation Asian populations?
Yes
No
Question 4 2 Points What is the difference? 3.50 -3.50 0.0004 0.07
In 2016, the Pew Research Center surveyed 1,799 white and 1,001 black Americans about their views on race and inequality. Pew researchers found “profound differences between black and white adults in their views on racial discrimination, barriers to black progress and the prospects for change.” White and black respondents also disagreed about the best methods to achieve racial equality. For example, 34% of whites and 41% of blacks said that “bringing people of different racial backgrounds together to talk about race” would be a very effective tactic for groups striving to help blacks achieve equality.Test whether the proportion of white respondents who support this tactic is significantly less than the proportion of black respondents.
Question 5 2 Points What is the null hypotheses? π₁ ≠ π₂ π₁ = π₂ μ1 = μ2 μ1 ≠ μ2 Question 6 2 Points What is the research hypotheses?
π₁ ≠ π₂
π₁ = π₂
μ1 = μ2
μ1 ≠ μ2
Question 7 2 Points Calculate the Z statistic and test the hypothesis at the 0.05 level. What is the Z Statistic?
3.50
-3.50
0.0004
0.07
Question 8 2 Points What is your decision (step 5 in hypothesis testing)? Do you accept or reject the null hypothesis? Accept Reject
We compare the proportion who indicated that it was “very important” to be born in this country to be American for two GSS 2014 groups: respondents (1) born in the United States (native born) and (2) not born in the United States (foreign born). Test the research hypothesis that a higher proportion of native-born respondents than foreign-born respondents indicated being born in the United States was “very important” to be American. Set alpha at 0.05.
Question 9 2 Points Do you accept or reject the null hypothesis? Accept Reject
Need math help with a composition
Let D be the set of all calendar dates from 4/30/1789 to 9/25/2014.
Let P be the set of names of U.S. presidents.
Let ...
Need math help with a composition
Let D be the set of all calendar dates from 4/30/1789 to 9/25/2014.
Let P be the set of names of U.S. presidents.
Let F be the set of names of first ladies of the U.S.
Consider the following two functions press : D ⇒ P where pres(d) is the name of the president of the U.S. on date d (the incumbent on inauguration days, to avoid ambiguity) and lady : P ⇒ F where lady(p) is the name of the first lady of the U.S. during the presidency of president P.
1. Can the composition pres ° lady be defined? What about lady ° pres ?2. Which of the following functional inverses exist and which do not?
pres-1, lady-1, (lady°pres)-1, (pres°lady)-1 (the -1 should be in superscript)
Gentry High School Survival Guide to Created a Book Around Algebra Questions
My Algebra Survival Guide Your mission if you chose is to create a "How to Book" with the concepts or ideas we have studie ...
Gentry High School Survival Guide to Created a Book Around Algebra Questions
My Algebra Survival Guide Your mission if you chose is to create a "How to Book" with the concepts or ideas we have studied this year. You must choose at least 10 out of the list to complete the book. How you complete the book is up to you. Some suggestions might be: a comic strip, cartoons, pictures, or another way of your choice. Make sure you make this visually interesting and mathematically sound. Requirements: -Must use at least 2 equations or word problem per each concept -Must have the correct solution for each problem - Must have a cover page and a table of contents - Must have at least 1 page for each concept for a total of 12 pages - Must be neat and accurate. Topics to Pick From: Absolute Values Coordinate Plane Domain and Range Exponent Rules Factoring Function Notation Graphing Linear Equations Graphing Inequalities Inequalities Parallel and Perpendicular Polynomials Quadratics Solving 1, 2, & multi-step equations Systems of Equations The Number System If you think of a topic that I left off of this list that you would like to include, please ask before just doing it. Most likely, I will accept it, but get permission first! . Name: Rubric: Skill Emerging Developing Proficient Fluent Basic Understanding (6 pts) Followed no directions Following Directions (12pts) Followed 25% directions (18pts) (24pts) Followed half Followed the directions 75% of directions (30pts) Followed all directions Problems Solutions 8 Solutions 12 Solutions 16 Less than 4 Solutions No Creativity Solutions Creative Creativity All 20 Problems All 20 Solutions The best I can do Complete Cover page and TOC Some Half creativity imagination | Half sloppy Partially complete cover Page/TOC 5-6 errors 3-4 errors Cover No Cover Page/Table Ipage/TOC of Contents Accuracy 1-2 Errors No Errors 7 or more errors. Time use Neatness Not neat Somewhat neat Half pictures Some pictures Visuals to go No pictures with each problems Presentation Refuses to present Missing some pictures Turned in on time Takes Pride in his/her work Every problem has a picture Presents accurately Presents problem(s) inaccurately 300 ILL MILL TITIPA-TITTAMIM T
STA3215CBE Rasmussen Analysis with Correlation and Regression Assignment
CompetencyDetermine and interpret the linear correlation coefficient, and use
linear regression to find a best fit line ...
STA3215CBE Rasmussen Analysis with Correlation and Regression Assignment
CompetencyDetermine and interpret the linear correlation coefficient, and use
linear regression to find a best fit line for a scatter plot of the data
and make predictions.ScenarioAccording to the U.S. Geological Survey (USGS), the probability of a
magnitude 6.7 or greater earthquake in the Greater Bay Area is 63%,
about 2 out of 3, in the next 30 years. In April 2008, scientists and
engineers released a new earthquake forecast for the State of California
called the Uniform California Earthquake Rupture Forecast (UCERF).As a junior analyst at the USGS, you are tasked to determine whether
there is sufficient evidence to support the claim of a linear
correlation between the magnitudes and depths from the earthquakes. Your
deliverables will be a PowerPoint presentation you will create
summarizing your findings and an excel document to show your work.Concepts Being Studied
Correlation and regression
Creating scatterplots
Constructing and interpreting a Hypothesis Test for Correlation using r as the test statistic
You are given a spreadsheet that contains the following information:
Magnitude measured on the Richter scale
Depth in km
Using the spreadsheet, you will answer the problems below in a PowerPoint presentation.What to SubmitThe PowerPoint presentation should answer and explain the following questions based on the spreadsheet provided above.
Slide 1: Title slide
Slide 2: Introduce your scenario and data set including the variables provided.
Slide 3: Construct a scatterplot of the two
variables provided in the spreadsheet. Include a description of what you
see in the scatterplot.
Slide 4: Find the value of the linear correlation coefficient r and the critical value of r using α = 0.05. Include an explanation on how you found those values.
Slide 5: Determine whether there is sufficient
evidence to support the claim of a linear correlation between the
magnitudes and the depths from the earthquakes. Explain.
Slide 6: Find the regression equation. Let the predictor (x) variable be the magnitude. Identify the slope and the y-intercept within your regression equation.
Slide 7: Is the equation a good model? Explain.
What would be the best predicted depth of an earthquake with a magnitude
of 2.0? Include the correct units.
Slide 8: Conclude by recapping your ideas by summarizing the information presented in context of the scenario.
Along with your PowerPoint presentation, you should include your Excel document which shows all calculations.
Earn money selling
your Study Documents