webassign net Record A Tax Payment Taxsar HW 7 Study Guide 4.1-4.3) Previous Ans

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webassign net Record A Tax Payment Taxsar HW 7 Study Guide 4.1-4.3) Previous Answers craudcoAlg5 5.5 Ex 007. My Notes o Ask your T The following table shows the rate R of vehicular involvement in traffic a (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. Accident rate R 20 25 350 45 (a) Use regression to find a quadratic model for the data. (Round the regression parameters to two decimal places.) R 7.86x2-516.72x 8762.86 x (b) Calculate R(70). (Round your answer to two decimal places.) R(70) 11107.16 Explain what your answer means in practical terms.

Explanation / Answer

I entered the coordinates
(20,1600)
(25,700)
(30,350)
(35,300)
(40,700)
(45,1400)

onto xuru.org ---> regression tools ----> polynomial regression

And got the result

y = 7.86x^2 - 516.71x + 8762.86 ----> ANSWER

----------------------------------------------------------------------

R(70) :

7.86(70)^2 - 516.71(70) + 8762.86

11107.16 ---> ANSWER

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