.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)
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](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6efd91bc-cb54-49c7-ac6e-1c0b5e4ee7cd%2F5a92a98a-909e-45c3-ad47-746b438b6d35%2Fd3iejsk_processed.jpeg&w=3840&q=75)
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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