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 1550 25 30 600 350 35 300 40 800 45 1300 (a) Use regression to find a quadratic model for the data. (Round the regression parameters to two decimal places.) R = (b) Calculate R(70). (Round your answer to two decimal places.) R(70) - 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 commercial vehicles driving at night on urban streets) at a minimum? (Round your answer to the nearest whole number.) mph

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 1550 25 30 600 350 35 300 40 800 45 1300 (a) Use regression to find a quadratic model for the data. (Round the regression parameters to two decimal places.) R = (b) Calculate R(70). (Round your answer to two decimal places.) R(70) - 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 commercial vehicles driving at night on urban streets) at a minimum? (Round your answer to the nearest whole number.) mph

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

Chapter5: A Survey Of Other Common Functions

Section5.6: Higher-degree Polynomials And Rational Functions

Problem 1E: A Dubious Model of Oil Prices The following table shows the prices of oil in U.S. dollars per...

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Question

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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
1550
25
30
600
350
35
300
40
800
45
1300
(a) Use regression to find a quadratic model for the data. (Round the regression parameters to two decimal places.)
R =
(b) Calculate R(70). (Round your answer to two decimal places.)
R(70) -
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
commercial vehicles driving at night on urban streets) at a minimum? (Round your answer to the nearest whole number.)
mph

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