Add or subtract as indicated. Simplify, if necessary.
- 
A. 1
B. m
C. 0
D. -m
Answer: B
Mathematics
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Graph the equation by plotting the intercepts.5x - 15y = 30
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Suppose f(x) = 30.2 + 1.3 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 609 meters.
A. 82.82 B. -26.58 C. 33.82 D. 85.42
Mathematics
Perform the operation indicated.
÷ 
A. 
B. 
C. 
D. x - 8
Mathematics
Evaluate the radical expressions or indicate that the root is not a real number.
A. 16 B. -2 C. 2 D. Not a real number
Mathematics