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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

Advanced Engineering Mathematics
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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.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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