Solve the problem.Find the average rate of change.
Minutes Cellular Phone is Used
A. $1.33 per min
B. $-0.08 per min
C. $-12.00 per min
D. $0.38 per min
Answer: B
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Find the median of the data set.
Use the following information to answer questions 2-10. 24 students in an engineering class were asked to record the number of hours spent in a lab during a week. The results are listed below. 3, 10, 21, 14, 8, 5, 1, 4, 13, 7, 9, 6, 11, 10, 6, 7, 12, 16, 1 , 7, 14, 1, 11, 8
Find the coordinates of the vertex of the parabola.y = 3x2 + 6x - 1
A. (-1, -4) B. (4, 1) C. (-4, -1) D. (1, 4)
Perform the indicated operations and simplify the result. Leave the answer in factored form.
- 
A. 
B. 
C. 
D. 0
Use Bayes' rule to find the indicated probability.The incidence of a certain disease on the island of Tukow is 4%. A new test has been developed to diagnose the disease. Using this test, 91% of those who have the disease test positive while 4% of those who do not have the disease test positive (false positive). If a person tests positive, what is the probability that he or she actually has the disease?
A. 0.438 B. 0.487 C. 0.91 D. 0.856