write an equation of the line with the given slope, m, and y-intercept (0,b) m=-1/5,b=3/4
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20170206210251exponential Functions 2
Which system of equations can be used to find the power function that passes through the points (2, 10) and (8, 25)? A pow ...
20170206210251exponential Functions 2
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MATH 265 DeVry University Substituting Values of Constants Worksheet
Do you have the solution for this project?Math265 Project Part BName:In this part of the project, you will model the behav ...
MATH 265 DeVry University Substituting Values of Constants Worksheet
Do you have the solution for this project?Math265 Project Part BName:In this part of the project, you will model the behavior of a resistor-inductor (RL) circuit in a transient state. Initially, the DC voltage source is off and there is no current in the circuit.After the source ‘ε’ is turned on, the current through the inductor quickly rises and produces an EMF that opposes the change in current:where ‘L’ is the inductanceUsing Kirchhoff’s Voltage Law and Ohm’s Law results in the equationThis differential equation can be solved to determine an expression for the current through the circuit as a function of time:whereis the final current andis known as the inductive time constant.The theoretical EMF produced by the inductor can be found as follows:Graphing Current vs Time (25 points)Consider an RL circuit that is being charged with a voltage source ε.The voltage across the inductor is shown as a function of time in the table below, with time in seconds (s) and voltage in volts (V).The magnitude of the current at time tf can be determined from the voltage (v) as where I(ti) is the current at time ti.We will use a technique to calculate this integral algebraically, to determine the current from the voltage. By doing so, we are finding the approximate area under the voltage versus time curve.To determine the current at a time ‘2’, where time ‘1’ is the previous interval, useThe numerator is the average voltage multiplied by the time interval and is an algebraic approximation for the area underneath the voltage versus time curve between t1 and t2. In this example, for each interval, .Referencing the voltage in the table below, to determine the current for the first cell and knowing that at time t=0s, and for the next cellRepeat the process to fill in all of the cells in the table maintaining 3 significant figures for the current.Time (s)Voltage (V)I(A)0.0E+005.0003.0E-072.740.001166.0E-071.510.001809.0E-070.831.2E-060.451.5E-060.251.8E-060.142.1E-060.072.4E-060.042.7E-060.023.0E-060.01Open Desmos by copying and pasting the following link into your web browser or use control+click(https://www.desmos.com/calculator/lhdbhowyyh). Enter the data from the table for current in the column ‘y1’. You will fit the data using the theoretical equation for current as a function of time.Adjust the fitting parameters ‘a’ and ‘b’ using the sliders so that the curve matches the points.Since we are using an approximating method for calculating the points, the curve will not be an exact match. To fit the curve as well as possible, note the R2 value.R2 is known as the coefficient of determination.It is a unit-less number between 0 and 1 and indicates how well the curve fits the points.The closer R2 is to 1, the better the fit.Adjust ‘a’ and ‘b’ so that R2 is as close to 1 as possibleRecord your fitting parameters below as well as your R2 value:a=b=R2=Comparing to the equation for current above, noting thatand given that , determine the resistor value.Show your workR=Noting that , determine the value of the inductor.Show your work.L=Take a screenshot of Desmos showing current versus time and your data and paste below.Screenshot of DesmosGraphing Voltage vs Time (25 points)The magnitude of the voltage across the inductor was shown to be where Open Desmos by copying and pasting the following link into your web browser or use control+click(https://www.desmos.com/calculator/g3dkvlljti)Using Desmos and the quantities R, L and ε from Section I., plot the voltage as a function of time, using the equation above.In Desmos, type the values for ε, R and L to replace the # symbols in the equation provided. Copy and paste your graph with the theoretical voltage versus time below.Screenshot of Desmos: Summary of Section I (10 points)Write a two paragraph summary of your findings from Section I.Explain the setup and the results.Section I SummarySummary of Section II (10 points)Write a two paragraph summary of your findings from Section II.Explain the setup and the results. Section II Summary
Percentile Point Data
The professor teaching a large introductory class gives a final exam that has alternate forms, A, B, and C. A student taki ...
Percentile Point Data
The professor teaching a large introductory class gives a final exam that has alternate forms, A, B, and C. A student taking the exam using Form B is upset because she claims that Form B is much harder than Forms A and C. Discuss how percentile point data might be useful to determine if the student is correct.
Apply: Balance Sheets and Income Statements
INSTRUCTIONS: Complete parts A and B of this exercise. Examples can be found in Chapter 21 of your textbook. Be sure to ...
Apply: Balance Sheets and Income Statements
INSTRUCTIONS: Complete parts A and B of this exercise. Examples can be found in Chapter 21 of your textbook. Be sure to notice that Part A is a balance sheet and Part B is an income statement. Also, be sure to note that the most recent year is shown on the left in these financial statements. Formulas and examples for interpretation of results can be found in Table 21-1 of your textbook or the last worksheet tab of this file.
STA 3215 RU Salary Distributions of Jobs in Minnesota Hypothesis Tests Report
A major client of your company is interested in the salary distributions of jobs in the state of Minnesota that range from ...
STA 3215 RU Salary Distributions of Jobs in Minnesota Hypothesis Tests Report
A major client of your company is interested in the salary distributions of jobs in the state of Minnesota that range from $30,000 to $200,000 per year. As a Business Analyst, your boss asks you to research and analyze the salary distributions. You are given a spreadsheet Click for more options
that contains the following information:
A listing of the jobs by title
The salary (in dollars) for each job
In prior engagements, you have already explained to your client about the basic statistics and discussed the importance of constructing confidence intervals for the population mean. Your client says that he remembers a little bit about hypothesis testing, but he is a little fuzzy. He asks you to give him the full explanation of all steps in a hypothesis testing and wants your conclusion about a claim that the average salary for all jobs in the state of Minnesota is less than $74,500 and a second claim that the average salary for all jobs in the state of Minnesota is greater than $70,500.
Background information on the Data
The data set in the spreadsheet consists of 364 records that you will be analyzing from the Bureau of Labor Statistics. The data set contains a listing of several jobs titles with yearly salaries ranging from approximately $30,000 to $200,000 for the state of Minnesota.
What to Submit
Your boss wants you to submit the spreadsheet with the completed calculations, answers, and analysis.
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3 pages
20170206210251exponential Functions 2
Which system of equations can be used to find the power function that passes through the points (2, 10) and (8, 25)? A pow ...
20170206210251exponential Functions 2
Which system of equations can be used to find the power function that passes through the points (2, 10) and (8, 25)? A power model should be used to ...
MATH 265 DeVry University Substituting Values of Constants Worksheet
Do you have the solution for this project?Math265 Project Part BName:In this part of the project, you will model the behav ...
MATH 265 DeVry University Substituting Values of Constants Worksheet
Do you have the solution for this project?Math265 Project Part BName:In this part of the project, you will model the behavior of a resistor-inductor (RL) circuit in a transient state. Initially, the DC voltage source is off and there is no current in the circuit.After the source ‘ε’ is turned on, the current through the inductor quickly rises and produces an EMF that opposes the change in current:where ‘L’ is the inductanceUsing Kirchhoff’s Voltage Law and Ohm’s Law results in the equationThis differential equation can be solved to determine an expression for the current through the circuit as a function of time:whereis the final current andis known as the inductive time constant.The theoretical EMF produced by the inductor can be found as follows:Graphing Current vs Time (25 points)Consider an RL circuit that is being charged with a voltage source ε.The voltage across the inductor is shown as a function of time in the table below, with time in seconds (s) and voltage in volts (V).The magnitude of the current at time tf can be determined from the voltage (v) as where I(ti) is the current at time ti.We will use a technique to calculate this integral algebraically, to determine the current from the voltage. By doing so, we are finding the approximate area under the voltage versus time curve.To determine the current at a time ‘2’, where time ‘1’ is the previous interval, useThe numerator is the average voltage multiplied by the time interval and is an algebraic approximation for the area underneath the voltage versus time curve between t1 and t2. In this example, for each interval, .Referencing the voltage in the table below, to determine the current for the first cell and knowing that at time t=0s, and for the next cellRepeat the process to fill in all of the cells in the table maintaining 3 significant figures for the current.Time (s)Voltage (V)I(A)0.0E+005.0003.0E-072.740.001166.0E-071.510.001809.0E-070.831.2E-060.451.5E-060.251.8E-060.142.1E-060.072.4E-060.042.7E-060.023.0E-060.01Open Desmos by copying and pasting the following link into your web browser or use control+click(https://www.desmos.com/calculator/lhdbhowyyh). Enter the data from the table for current in the column ‘y1’. You will fit the data using the theoretical equation for current as a function of time.Adjust the fitting parameters ‘a’ and ‘b’ using the sliders so that the curve matches the points.Since we are using an approximating method for calculating the points, the curve will not be an exact match. To fit the curve as well as possible, note the R2 value.R2 is known as the coefficient of determination.It is a unit-less number between 0 and 1 and indicates how well the curve fits the points.The closer R2 is to 1, the better the fit.Adjust ‘a’ and ‘b’ so that R2 is as close to 1 as possibleRecord your fitting parameters below as well as your R2 value:a=b=R2=Comparing to the equation for current above, noting thatand given that , determine the resistor value.Show your workR=Noting that , determine the value of the inductor.Show your work.L=Take a screenshot of Desmos showing current versus time and your data and paste below.Screenshot of DesmosGraphing Voltage vs Time (25 points)The magnitude of the voltage across the inductor was shown to be where Open Desmos by copying and pasting the following link into your web browser or use control+click(https://www.desmos.com/calculator/g3dkvlljti)Using Desmos and the quantities R, L and ε from Section I., plot the voltage as a function of time, using the equation above.In Desmos, type the values for ε, R and L to replace the # symbols in the equation provided. Copy and paste your graph with the theoretical voltage versus time below.Screenshot of Desmos: Summary of Section I (10 points)Write a two paragraph summary of your findings from Section I.Explain the setup and the results.Section I SummarySummary of Section II (10 points)Write a two paragraph summary of your findings from Section II.Explain the setup and the results. Section II Summary
Percentile Point Data
The professor teaching a large introductory class gives a final exam that has alternate forms, A, B, and C. A student taki ...
Percentile Point Data
The professor teaching a large introductory class gives a final exam that has alternate forms, A, B, and C. A student taking the exam using Form B is upset because she claims that Form B is much harder than Forms A and C. Discuss how percentile point data might be useful to determine if the student is correct.
Apply: Balance Sheets and Income Statements
INSTRUCTIONS: Complete parts A and B of this exercise. Examples can be found in Chapter 21 of your textbook. Be sure to ...
Apply: Balance Sheets and Income Statements
INSTRUCTIONS: Complete parts A and B of this exercise. Examples can be found in Chapter 21 of your textbook. Be sure to notice that Part A is a balance sheet and Part B is an income statement. Also, be sure to note that the most recent year is shown on the left in these financial statements. Formulas and examples for interpretation of results can be found in Table 21-1 of your textbook or the last worksheet tab of this file.
STA 3215 RU Salary Distributions of Jobs in Minnesota Hypothesis Tests Report
A major client of your company is interested in the salary distributions of jobs in the state of Minnesota that range from ...
STA 3215 RU Salary Distributions of Jobs in Minnesota Hypothesis Tests Report
A major client of your company is interested in the salary distributions of jobs in the state of Minnesota that range from $30,000 to $200,000 per year. As a Business Analyst, your boss asks you to research and analyze the salary distributions. You are given a spreadsheet Click for more options
that contains the following information:
A listing of the jobs by title
The salary (in dollars) for each job
In prior engagements, you have already explained to your client about the basic statistics and discussed the importance of constructing confidence intervals for the population mean. Your client says that he remembers a little bit about hypothesis testing, but he is a little fuzzy. He asks you to give him the full explanation of all steps in a hypothesis testing and wants your conclusion about a claim that the average salary for all jobs in the state of Minnesota is less than $74,500 and a second claim that the average salary for all jobs in the state of Minnesota is greater than $70,500.
Background information on the Data
The data set in the spreadsheet consists of 364 records that you will be analyzing from the Bureau of Labor Statistics. The data set contains a listing of several jobs titles with yearly salaries ranging from approximately $30,000 to $200,000 for the state of Minnesota.
What to Submit
Your boss wants you to submit the spreadsheet with the completed calculations, answers, and analysis.
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