Solve the problem.After introducing an inhibitor into a culture of luminescent bacteria, a scientist monitors the luminosity produced by the culture. Use a graphing utility to fit a logarithmic function to the data. Predict the luminosity after 20 hours.
A. y = 107.55 - 41 ln (x), -15.27
B. y = 112.97 - 45.97 ln (x), -24.74
C. y = 100.5 - 32.7 ln (x), 2.54
D. y = 98.75 - 32.66 ln (x), 0.91
Answer: D
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Solve.2k2 - 5k - 3 = 0
A. - 
, 2
B. 
, - 
C. -2, 3
D. - 
, 3
Use a calculator to evaluate the expression, or state that the value does not exist. Round the answer to four decimal places when necessary.tanh-1 4
A. 1.0007 B. 0.2554 C. does not exist D. 0.9993
For the given correspondence, write the domain and the range. Then determine whether the correspondence is a function.{(-7, 2), (-4, -9), (-1, -5), (8, 2)}
A. domain: {-7, -4, -1, 8}, range: {-9, -5, 2}; Yes, it is a function. B. domain: {-7, -4, -1, 8}, range: {-9, -5, 2}; No, it is a not a function. C. domain: {-9, -5, 2}, range: {-7, -4, -1, 8}; Yes, it is a function. D. domain: {-9, -5, 2}, range: {-7, -4, -1, 8}; No, it is a not a function.
Replace the ? with the inequality symbol <, >, or =.|-44| ? |-37|
A. < B. > C. =