Reminder Round all answers to two decimal places unless otherwise indicated.
Speed from Skid Marks When a car makes an emergency stop on dry pavement, it leaves skid marks on the pavement. The length L, in feet, of the skid mark is related to the speed S, in miles per hour, when the brakes were applied. The relationship is
a. | Make a graph of S versus L. Include lengths of up to 200 feet. |
b. | A man involved in an emergency stop claimed his speed was between 30 and 40 miles per hour. What skid mark length would support this claim? |
Want to see the full answer?
Check out a sample textbook solutionChapter 2 Solutions
Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
Additional Math Textbook Solutions
Elementary Statistics Using The Ti-83/84 Plus Calculator, Books A La Carte Edition (5th Edition)
A First Course in Probability (10th Edition)
Elementary & Intermediate Algebra
Probability And Statistical Inference (10th Edition)
Calculus: Early Transcendentals (2nd Edition)
College Algebra (Collegiate Math)
- A car’s value varies inversely with its age. Elena bought a two-year-old car for $20,000. a. Write the equation of variation. b. What will be the value of Elena’s car when it is 5 years old?arrow_forwardHighway grade. A local road rises 2 feet for every 50 feet of highway. (a) What is the slope of the highway? (b) The grade of a highway is its slope expressed as a percent. What is the grade of this highway?arrow_forwardFarms in the United States The graph gives the number of farms in the United States from 1850 to 2000. aEstimate the average rate of change in the number of farms between i 1860 and 1890 and ii 1950 and 1970. bIn which decade did the number of farms experience the greatest average rate of decline?arrow_forward
- A bottle of medicine is to be stored at a temperature between 5 C and 10 C. What range does this correspond to on the Fahrenheit scale? Note: Fahrenheit F and Celsius C temperatures satisfy the relation C=59(F32).arrow_forwardThe force needed to break a board varies inversely with its length. Richard uses 24 pounds of pressure to break a 2-foot long board. a. Write the equation of variation. b. How many pounds of pressure is needed to break a 5-foot long board?arrow_forwardXander’s new business found that the daily demand for its product was inversely proportional to the price, p. When the price is $5, the demand is 700 units. (a) Write the equation of variation. (b) What is the demand if the price is raised to $7?arrow_forward
- For each measurement find: a. the degree of precision. b. the value that is equal to or less than the range of values. c. the value that is greater than the range of values. 0.976 mma.__________b.__________c.__________arrow_forwardWhich scale would be the most appropriate for the y-axis of a graph of the amount of snowfall that an area receives in the winter?arrow_forwardQuestion below. Please show step by step. Thank you.arrow_forward
- A pediatrician wants to determine the relation that exists between a child's height, x, and head circumference, y. She randomly selects 11 children from her practice, measures their heights and head circumferences, and obtains the accompanying data. Complete parts (a) through (g) below. E Click the icon to view the children's data, Question Help ▼ Interpret the y-intercept, it approprate. Select the correct choice below and, it necessary, till in the answer box to complete your choice. O A. For every inch increase in head circumference, the height increases by in., on average. (Round to one decimal place as needed.) O B. For a height of 0 inches, the head circumference is predicted to be (Round to one decimal place as needed.) in. O C. For every inch increase in height, the head circumference increases by in., on average. (Round to one decimal place as needed.) O D. For a head circumference of 0 inches, the height is predicted to be in. (Round to one decimal place as needed.) O E. It…arrow_forwardDirections: Read and analyse the situation below. Perform the task that follows. . The graph below shows the number of COVID 19 deaths in the Philippines from February 15, 2020 to August 6, 2020. 2500 2000 1500 Total Deaths (Linear Scale) 1000 500 Apr 01 Estimate the average rate of change in COVID 19 deaths from April 1, 2020 to August 1, 2020. • Deaths: 96 Aug 07 Feb 15 Fab 21 Feb 27 Mar 04 • Deaths 2 039 Mar 16 Mar 22 Mar 28 Mar 1o Apr 03 Apr 09 Apr 21 Source: http:/mew.worldometers.info/coronavirus/country/philippines/ May 03 May 09 May 21 May 27 Jun 02 Jun 14 Jun 20 Jun 26 Jun 08 Jul02 Julos Jul 20 Jul 26 Total Coronavirus Deaths Apr 15 Apr 27 May 15 Jul 14 10 6nyarrow_forwardThe circle graph shows a breakdown of spending for the average household using 365 days worked as a basis of comparison. What percentage of work time does the average household spend paying for saving? C Paying for saving accounts for % of work time. (Round to one decimal place as needed.) State/Local Taxes: 37 days Housing and Household Operation: 65 days All Other: 41 days Federal Taxes: 73 days Medical Care: 53 days Saving: 3 days Food: 30 days Recreation: 21 days Transportation 30 days Clothing and Accessories: 12 daysarrow_forward
- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw HillHolt Mcdougal Larson Pre-algebra: Student Edition...AlgebraISBN:9780547587776Author:HOLT MCDOUGALPublisher:HOLT MCDOUGALAlgebra: Structure And Method, Book 1AlgebraISBN:9780395977224Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. ColePublisher:McDougal Littell
- Algebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:CengageBig Ideas Math A Bridge To Success Algebra 1: Stu...AlgebraISBN:9781680331141Author:HOUGHTON MIFFLIN HARCOURTPublisher:Houghton Mifflin HarcourtCollege AlgebraAlgebraISBN:9781305115545Author:James Stewart, Lothar Redlin, Saleem WatsonPublisher:Cengage Learning