Solve the problem.Suppose f(x) = 33.8 + 1.5log (x + 1) models salinity of ocean water to depths of 
at a certain latitude. x is the depth in meters and f(x) is in grams of salt per kilogram of seawater. Approximate the salinity (to the nearest hundredth) when the depth is 897 meters.
A. -29.37 g/kg
B. 98.32 g/kg
C. 38.23 g/kg
D. 101.32 g/kg
Answer: C
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Solve the problem.The number of cars sold by a certain automobile manufacturer, y, in a particular year can be approximated by the equation 
where x represents the number of years after 1990. The number of SUVs sold by the same automobile manufacturer, y, in a particular year can be approximated by the equation 
where x represents the number of years after 1990. In what year did this automobile manufacturer sell an equal number of cars and SUVs?
A. 2050 B. 2000 C. 2049 D. 2001
Find the product.(2k + 1)3
A. 8k3 + 1 B. 8k3 + 24k2 + 6k + 1 C. 8k3 + 12k2 + 6k + 1 D. 8k3 + 8k2 + 4k + 1
Determine the intervals on which the function is increasing, decreasing, and constant.
A. Increasing on (-5, ?); Decreasing on (-?, -5) B. Increasing on (-?, -5); Decreasing on (-5, ?) C. Increasing on (-?, -5); Decreasing on (-?, -5) D. Increasing on (-5, ?); Decreasing on (-5, ?)
Find the median of the data set.1.3, 0.5, 0.7, 1.3, 0.3, 1.5, 0.3, 1.6, 2
A. 1.1 B. 1 C. 0.7 D. 1.3