Solve the equation for y.-8x + 7y = 9
A. y = 56x + 63
B. y = 
C. y = 
D. y = 
Answer: C
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Round the number as indicated.6863 to the nearest thousand
A. 6890 B. 7100 C. 7000 D. 8000
Determine the intervals on which the function is increasing, decreasing, and constant.
A. Increasing on (-?, -1); Decreasing on (-1, ?) B. Increasing on (-?, -1); Decreasing on (-?, -1) C. Increasing on (-1, ?); Decreasing on (-?, -1) D. Increasing on (-1, ?); Decreasing on (-1, ?)
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
Find the area A. Round the answer to three decimal places.
A. 21.206 yd2 B. 13.5 yd2 C. 2.356 yd2 D. 42.412 yd2