Charlotte-Mecklenburg Schools68Unit 4 Lesson 3 Practice Problems O1. The scatter plot shows the number of minutes people had to waitfor service at a restaurant and the number of staff available at thetime.A line that models the data is given by the equation-y = 1.62x + 18, where y represents the wait time, and xrepresents the number of staff available.a. The slope of the line is -1.62. What does this mean in thissituation? Is it realistic?wait time131211987S432+sippees1Math 1. Unit 4. Lesson 3 Student1 2 3 4 5 6 7 8 9staffb. The y-intercept is (0, 18). What does this mean in this situation? Is it realistic?D

We are given the linear model as y = -1.62x + 18 where, y = waiting time (in minutes)…

Answered: Charlotte-Mecklenburg Schools Unit 4…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

See similar textbooks

Similar questions

The table and scatter plot show the number of years of experience, x, and the hourly pay rate, v, for each of 11 cashiers in Florida. The equation of the line of best fit is y= 0.9x+8.02. Experience, x | Hourly pay rate, y (in years) (in dollars) 22 0.8 7.42 20- 1.0 9.71 18- 16- 1.3 8.00 Hourly 14- 2.0 9.08 pay rate 12- (in dollars) 3.3 11.40 10 3.6 12.12 8. 3.8 13.00 6. 5.0 14.50 7.0 12.40 8.6 15.46 10 Experience (in years) 8.8 15.87 Use the equation of the line of best fit to fill in the blanks below. Give exact answers, not rounded approximations. Observed hourly pay Predicted hourly pay Number of years of experience Residual rate (in dollars) rate (in dollars) (in dollars) 5.0 7.0
Alejandro is selling HDMI cables on eBay, and is trying to determine the best price to sell at. For the last 10 weeks, he has adjusted his price slightly each week and tracked the number of cables he sold. He plotted the results, and drew a line he feels fits the data well. a) The line of best fit passes through the points (3.50, 220) and (4.75, 190). Find an equation for the line. Use variables: p for price in dollars, and Qfor quantity of cables sold. b) Using this model, predict the number of cables Alejandro would sell at a price of $3.65, to the nearest whole cable. cables
Part II: Joe and his Dream Porsche Joe is 16 years old and has decided that he wants a brand-spankin' new Porsche Boxter Convertible, but his mom says there's no way that he could ever afford it! So, Joe has decided to show his mom that he will be able to purchase his dream car at the age of 35 if he plans his finances just right. He's asked you to help him plan. A. How much will his car cost in 19 years? The following table shows the approximate MSRP (manufacturers suggested retail price) of a Porsche Boxter Convertible from 2004 to 2008. Create a scatter plot of the data and determine the line of best fit, finding an appropriate slope and initial value assuming it started in 2004.. Year MSRP 2004 $57 510 2005 $59 130 2006 $60 750 2007 $61 965 2008 $63 600 B. Financing Joe's new Porsche Joe knows that he will have to put 10% down on his car. To save up for this down payment, he plans on investing a set amount monthly, starting now, into Teen's Choice Financial's Interest Plus Savings…
The heights and weights of elephants at the zoo are recorded in the table. Height (in feet) 4 6 7 7 7.5 9 Weight (in tons) 1.25 1.9 2.5 2.1 2.3 3.4 Interpret the slope, using the equation for the line of best fit ŷ = 0.513x − 0.408; for every additional foot in height, the elephant is predicted to gain 0.513 tons of weight ŷ = 0.408x − 0.513; for every additional foot in height, the elephant is predicted to gain 0.408 tons of weight ŷ = 0.408x − 0.513; for every additional foot in height, the elephant is predicted to lose 0.513 tons of weight ŷ = 0.513x − 0.408; for every additional foot in height, the elephant is predicted to lose 0.408 tons of weight
64. Average Wages The average hourly wage (adjusted to 1982 dollars) was $7.66 in 1990 and $9.16 in 2017. (Source: U.S. Bureau of Labor Statistics.) (a) Find a point-slope form of a line that passes through the points (1990, 7.66) and (2017, 9.16). (b) Interpret the slope. (c) Use the equation from part (a) to approximate the hourly wage in 2009. Compare it with the actual value of $8.27.
Please show all steps for a, b, c and d, with steps on how to do it on excel
3. Marge aims to find out whether income predicts life satisfaction in any way. She assesses income and life satisfaction in 30 citizens of Springfield. Her calculations result in a slope b = 2.2 and an SE = 0.4. Can she conclude that income significantly predicts life satisfaction on the 5% level? . HO: B=0 H1: ẞ#0
A clothing business finds there is a linear relationship between the number of shirts,n, it can sell and the price,p, it can charge per shirt. In particular, historical data shows that 6000 shirts can be sold at a price of $56, while 9000 shirts can be sold at a price of $35. Give a linear equation in the form p = mn + b that gives the price p they can charge for ŉ shirts. Answer: p= Round the value of your slope to three decimal places. Be careful to use the proper variable and use the Preview button to check your syntax before you submit your answer.
24. In order to make the playoff a soccer team must get 20 points during the regular season. The team gets 2 points for a win and 1 point for a tie. A team eams just enough points to make the playoffs. Let x represent the number of wins and y represent the number of ties. a. Write an equation to relating the all the possible values of x and y that will let the team make the playoffs. b. Write the equation in Slope-Intercept Form. c. If the team wins 8 games, how many tie games will need to occur?
The percent of defects is the x-coordinate, while the percent of new machines is the y-coordinate. So, the table of values corresponds to the points (25,32), (20,40), (15,50), (10,65), (5,70), (0,85). Question Using the linear relationship graphed above, estimate the percent of new machines if there is 12% defects in the shoes at various production facilities. Provide your answer below: _____

Recommended textbooks for you

Advanced Engineering Mathematics

Advanced Math

ISBN:

9780470458365

Author:

Erwin Kreyszig

Publisher:

Wiley, John & Sons, Incorporated

Numerical Methods for Engineers

Advanced Math

ISBN:

9780073397924

Author:

Steven C. Chapra Dr., Raymond P. Canale

Publisher:

McGraw-Hill Education

Introductory Mathematics for Engineering Applicat…

Advanced Math

ISBN:

9781118141809

Author:

Nathan Klingbeil

Publisher:

WILEY

Advanced Engineering Mathematics

Advanced Math

ISBN:

9780470458365

Author:

Erwin Kreyszig

Publisher:

Wiley, John & Sons, Incorporated

Numerical Methods for Engineers

Advanced Math

ISBN:

9780073397924

Author:

Steven C. Chapra Dr., Raymond P. Canale

Publisher:

McGraw-Hill Education

Introductory Mathematics for Engineering Applicat…

Advanced Math

ISBN:

9781118141809

Author:

Nathan Klingbeil

Publisher:

WILEY

Mathematics For Machine Technology

Advanced Math

ISBN:

9781337798310

Author:

Peterson, John.

Publisher:

Cengage Learning,

Basic Technical Mathematics

Advanced Math

ISBN:

9780134437705

Author:

Washington

Publisher:

PEARSON

Topology

Advanced Math

ISBN:

9780134689517

Author:

Munkres, James R.

Publisher:

Pearson,

SEE MORE TEXTBOOKS