The table below shows the profit, P(x), in dollars, from selling items.X1 2369P(x) 70.9 85 89.343.4 -90.7Using your calculator to do a quadratic regression, express the profit as a function of the numberof items sold.P(x)Round all numbers to 1 decimal place.=14-510.2Using your quadratic regression, estimate the profit from selling 12 items?Select an answerRound to 2 decimal places.Using your quadratic regression, estimate the number of items that need to be sold to make aprofit of $-36.2 ?Select an answer

For the given data we need to find the quadratic regression using the calculator. Enter the values…

Answered: The table below shows the profit, P(x),…

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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The table below shows the value, V, of an investment (in dollars) n years after 1992. 1 3 7 4120 4283 4919 12 14 5874 6050 n V(n) 6663 Use your calculator to determine the exponential regression equation that models the set of data above. Round the "a" value to the nearest whole number, and round the "b" value to three decimals. Use the indicated variables and proper function notation. V(n) Based on the your regression model, what is the percent increase per year? The value of this investment is increasing at a rate of % per year. Based the your regression model, what is value of this investment in the year 1992? Round your answer to the nearest dollar. The value of this investment is $ in the year 1992. Based on the your regression model, what is value of this investment in the year 2002? Round your answer to the nearest dollar. The value of this investment is S in the year 2002.
Using R-Studio, estimate a regression equation to determine the effect of the real interest rates, the exchange rate and the GDP growth rate on the Merchandise trade (% of GDP). (All codes and regression output should be provided). NOTE: R-Studio should only be used for obtaining the regression output and the regression equation. (i) Write down the regression equation. Year Merchandise trade (% of GDP) Real interest rates (%), GDP growth (annual %) Official exchange rate (per US$). 2000 150.28 10.05 -1.4 182.43 2001 149.12 16.63 2.3 187.32 2002 144.60 13.36 1.1 190.67 2003 146.56 9.81 -0.6 193.88 2004 157.91 7.27 1.6 198.31 2005 162.57 6.42 -2 199.88 2006 62.06 -58.33 5.1 200.19 2007 63.64 5.91 7.2 202.35 2008…
The table below shows the height, h, in meters, of an object that is thrown off the top of a building as a function of t, the time in seconds after it is thrown. t 0.5 1 1.5 2 2.5 3 h(t) 95.775 109.1 119.975 128.4 134.375 137.9 Using your calculator to do a quadratic regression, express the height of the object as a function of the number of seconds that have passed since the object was thrown. Round all numbers to 1 decimal place. Using your quadratic regression, how high will the object be 2.7 seconds after it is thrown? Select an answer ✓ Round to 3 decimal places. Using your quadratic regression, how long will it take the object to reach 5 meters? Select an answer ✓ Round to the 3 decimal places.
A teacher wants to form a linear regression equation to predict a student's Score on the final based on the number of hours they spent studying for it. Final scores are in percents. y=2x + 60 R-Squared = 0.65 %3D What does the slope mean in terms of the situation? O For each additional hour a student studies, their grade on the final increases by 2%. O For each additional 2 hours a student student studies, their score on the final increases by 1%. O Every hour a student studies, increases their score on the final. O Always choose C. O The more a student studies, the better they will do on the final.
3 /5 104% 6. At a college, records show that the average person's grade point average, G(h), is a function of the number of hours he or she studies and does homework per week, h. The grade point average can be estimated by the function G(h)=0.01h +0.2h+1.2, for 0sh58. What is the grade point average of the average student who studies and does homework for 3 hours per week? 6.

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