Solve the problem.Which of the pairs of numbers whose sum is 86 has the largest product?
A. 33 and 53
B. 39 and 47
C. 42 and 44
D. 43 and 43
Answer: D
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Solve the problem.In triangle ABC, angle A is three times as large as angle C. The measure of angle B is 
less than that of angle C. Find the measure of the angles.
A. 114°, 28° and 76° B. 76°, 28° and 76° C. 114°, 28° and 38° D. 76°, 28° and 38°
Subtract.5x7 - 7x6 + 2x5 + 7
A. 8x7 - 3x6 + 7x5 - 2 B. 2x7 - 3x6 + 7x5 + 16 C. 8x7 - 3x6 + 7x5 + 16 D. 2x7 - 11x6 - 3x5 - 2
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. Round values to the nearest hundredth. Then, use the function to predict the luminosity, to the nearest hundredth, after 20 hours. 
A. y = 100.5 - 32.7 ln x; 2.54 B. y = 98.75 - 32.66 ln x; 0.91 C. y = 107.55 - 41 ln x; -15.27 D. y = 112.97 - 45.97 ln x; -24.74
Use the graph of a known basic function and a combination of horizontal shifts, reflections, and vertical shifts to sketch the function.g(x) = 
A. 
B. 
C. 
D. 