Mathematics, 01.06.2021 21:40 izzyisawesome5232
The regression line for predicting blood alcohol content from number of beers is y=0.018x - 0.013 The slope of this line tells us that
A. On the average, BAC increases by 0.018 for each (1) additional beer a student drinks
B. A student Who drinks no beer will still have a BAC of 0.018 (this is wrong I’m pretty sure)
C. The average BAC of all the students in the study was 0.018 (pretty sure this is it but I can’t mess up so plz someone confirm)
Answers: 3
Mathematics, 21.06.2019 16:50
The rate of decay of a radioactive substance depends upon the amount present initially. the mass y (mg) of the radioactive substance cobalt-60 present in a sample at time t (years) is represented by the exponential equation y=50e −0.1315 t . answer the following questions in complete sentences. 1. how does the exponential equation above compare to the equation for simple interest that is compounded continuously? explain the similarities. 2. what is the initial amount of cobalt-60 in the sample? 2. how much cobalt-60 is left after 8.4 years? show your work. 3. what would be the y-intercept of the graph? what does it represent? 4. after how many years will the amount of cobalt-60 left be 6.25 mg? explain what happens to the cobalt-60 after 50 years? 5. discuss some “real-world” examples and uses of cobalt-60
Answers: 1
Mathematics, 21.06.2019 19:30
Which of the following describes the symmetry of the graph of y = x3?
Answers: 2
The regression line for predicting blood alcohol content from number of beers is y=0.018x - 0.013 Th...
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