In Exercises 69–70, traffic speed S along a certain road (in kilometers per hour) varies as a function oftraffic density q (number of cars per kilometer of road). Use the following data to answer the questions:q (density) 60S (speed)90 100708072.5 67.5 63.5605669. Estimate S'(80).

We use the x=70 and x=90 to find the slope of the secant

Answered: In Exercises 69–70, traffic speed S…

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Chapter5: Exponential And Logarithmic Functions

Section5.5: Exponential And Logarithmic Models

Problem 3ECP: Estimate the age of a newly discovered fossil for which the ratio of carbon-14 to carbon-12 is...

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A researcher believes that the so-called “sugar high” is not real. He gathered 30 adolescents and recorded their activity level in the scale of 0 – 100 (0 = not active and 100 = super active). First, he recorded participants’ activity level before they consumed candy. After recording their pre-sugar activity level, the researcher gave out 5 Snickers bars to participants. Then, he recorded their post-sugar activity level. The average difference between post-sugar and pre-sugar activity level is 50 (i.e., the activity levels are higher after sugar than prior to it) with a standard deviation of 10. A). What is the type of test you will use? (z-test, single-sample t-test, paired-samples t-test, or independent samples t-test) and why (what information provided in the problem)B). What are the hypotheses (Be Specific)
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In Exercises 69–70, traffic speed S along a certain road (in kilometers per hour) varies as a function of traffic density q (number of cars per kilometer of road). Use the following data to answer the questions: q (density) 60 S (speed) 90 100 70 80 72.5 67.5 63.5 60 56 69. Estimate S'(80).