Solve the problem.Suppose f(x) = 28.6 + 1.4log (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 depth (to the nearest tenth of a meter) where the salinity equals 37.
A. -1.0
B. -0.8
C. 1,000,001.0
D. 999,999.0
Answer: D
Mathematics
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Convert the numeral to Hindu-Arabic form.
A. 2185 B. 2105 C. 2385 D. 2100
Mathematics
Choose the equation that matches the graph.
A. 
- 
= 1
B. 
+ 
= 1
C. 
- 
= 1
D. 
+ 
= 1
Mathematics
Determine whether the function is even, odd, or neither.f(x) = -0.51x2 + 
- 3
A. Odd B. Even C. Neither
Mathematics
Find the vertices and foci of the given ellipse.3x2 + 5y2 = 15
A. Vertices: (
, 0) and (-
, 0);
Foci: (
, 0) and (-
, 0)
B. Vertices: (0, 
) and (0, -
);
Foci: (0, 
) and (0, -
)
C. Vertices: (5, 0) and (-5, 0);
Foci: (2, 0) and (-2, 0)
D. Vertices: (0, 
) and (0, -
);
Foci: (0, 
) and (0, -
)
Mathematics