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.5.EX.007. PREVIOUS ANSWERS ASK YOUR TEACHER PRACTICE ANOTHER The following table shows the rate R of vehicular involvement in traffic accidents (per 100,000,000 vehicle-miles) as a function of vehicular speed s, in miles per hour, for commercial vehicles driving at night on urban streets. Speed s Accident rate R 20 1600 25 750 30 150 35 300 650 1200 40 45 (a) Use regression to find a quadratic model for the data. (Round the regression parameters to two decimal places.) R= 7.71 513.71x+8760 x (b) Calculate R(55). (Round your answer to two decimal places.) R(55)= Explain what your answer means in practical terms. Commercial vehicles driving at night on urban streets at miles per hour have traffic accidents at a rate of per 100,000,000 vehicle miles. (c) At what speed is vehicular involvement in traffic accidents (for commercial vehicles driving at night on urban streets) at a minimum? (Round your answer to the nearest whole number.) mph Submit Answer

.5.EX.007. PREVIOUS ANSWERS ASK YOUR TEACHER PRACTICE ANOTHER The following table shows the rate R of vehicular involvement in traffic accidents (per 100,000,000 vehicle-miles) as a function of vehicular speed s, in miles per hour, for commercial vehicles driving at night on urban streets. Speed s Accident rate R 20 1600 25 750 30 150 35 300 650 1200 40 45 (a) Use regression to find a quadratic model for the data. (Round the regression parameters to two decimal places.) R= 7.71 513.71x+8760 x (b) Calculate R(55). (Round your answer to two decimal places.) R(55)= Explain what your answer means in practical terms. Commercial vehicles driving at night on urban streets at miles per hour have traffic accidents at a rate of per 100,000,000 vehicle miles. (c) At what speed is vehicular involvement in traffic accidents (for commercial vehicles driving at night on urban streets) at a minimum? (Round your answer to the nearest whole number.) mph Submit Answer

Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
6th Edition
ISBN:9781337111348
Author:Bruce Crauder, Benny Evans, Alan Noell
Publisher:Bruce Crauder, Benny Evans, Alan Noell
Chapter3: Straight Lines And Linear Functions
Section3.CR: Chapter Review Exercises
Problem 16CR: XYZ Corporation Stock Prices The following table shows the average stock price, in dollars, of XYZ...
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.5.EX.007. PREVIOUS ANSWERS ASK YOUR TEACHER PRACTICE ANOTHER The following table shows the rate R of vehicular involvement in traffic accidents (per 100,000,000 vehicle-miles) as a function of vehicular speed s, in miles per hour, for commercial vehicles driving at night on urban streets. Speed s Accident rate R 20 1600 25 750 30 150 35 300 650 1200 40 45 (a) Use regression to find a quadratic model for the data. (Round the regression parameters to two decimal places.) R= 7.71 513.71x+8760 x (b) Calculate R(55). (Round your answer to two decimal places.) R(55)= Explain what your answer means in practical terms. Commercial vehicles driving at night on urban streets at miles per hour have traffic accidents at a rate of per 100,000,000 vehicle miles. (c) At what speed is vehicular involvement in traffic accidents (for commercial vehicles driving at night on urban streets) at a minimum? (Round your answer to the nearest whole number.) mph Submit Answer
Transcribed Image Text:.5.EX.007. PREVIOUS ANSWERS ASK YOUR TEACHER PRACTICE ANOTHER The following table shows the rate R of vehicular involvement in traffic accidents (per 100,000,000 vehicle-miles) as a function of vehicular speed s, in miles per hour, for commercial vehicles driving at night on urban streets. Speed s Accident rate R 20 1600 25 750 30 150 35 300 650 1200 40 45 (a) Use regression to find a quadratic model for the data. (Round the regression parameters to two decimal places.) R= 7.71 513.71x+8760 x (b) Calculate R(55). (Round your answer to two decimal places.) R(55)= Explain what your answer means in practical terms. Commercial vehicles driving at night on urban streets at miles per hour have traffic accidents at a rate of per 100,000,000 vehicle miles. (c) At what speed is vehicular involvement in traffic accidents (for commercial vehicles driving at night on urban streets) at a minimum? (Round your answer to the nearest whole number.) mph Submit Answer
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