Solve the problem.Suppose f(x) = 29.4 + 1.2log (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 77 meters.
A. 54.43 g/kg
B. -27.13 g/kg
C. 31.67 g/kg
D. 56.83 g/kg
Answer: C
Mathematics
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Identify the number as real, complex, pure imaginary, or nonreal complex. More than one of these descriptions may apply.-2
A. Complex, pure imaginary, nonreal complex B. Nonreal complex C. Complex D. Real, complex
Mathematics
Find the length of the third side of the right triangle. Assume that c represents the length of the hypotenuse. Give an exact answer and, if appropriate, an approximation to three decimal places.b = 12, c = 15
A. a = 9 B. a = 10 C. a = 81 D. a = 3
Mathematics
Identify the coefficient of each term.-7a + 11b
A. -7 B. -7a; 11b C. a; b D. -7; 11
Mathematics
List the improper fractions in the group.
, 
, 
, 
, 
A. 
, 
, 
, 
, 
B. 
, 
, 
, 
C. 
, 
D. 
, 
, 
Mathematics