Write a piecewise function for the given graph.
A. 
B. 
C. 
D. 
Answer: B
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Solve the problem.Suppose f(x) = 28.9 + 1.5 log(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 572 meters.
A. 78.21 g/kg B. 81.21 g/kg C. -24.76 g/kg D. 33.04 g/kg
Multiply and simplify.
? 
A. 
B. 
C. 
D. 
Determine whether the equation defines y as a function of x. y = |x|
A. function B. not a function
Solve the problem.A deep sea diving bell is being lowered at a constant rate. After 12 minutes, the bell is at a depth of 600 ft. After 30 minutes the bell is at a depth of 1900 ft. What is the average rate of lowering per minute? Round to the nearest hundredth as needed.
A. 63.33 ft per minute B. 43.33 ft per minute C. 72.22 ft per minute D. 0.01 ft per minute