Let
?
?
Find the set 
.
?
A. 
B. 
C. 
D. 
E. 
Answer: E
Mathematics
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State the domain of the given function.f(x) = 
A. All real numbers x ? -5 B. All real numbers except -5 C. All real numbers x > 5 D. All real numbers x ? 5
Mathematics
Match the graph to one of the polar equations.
A. r = -2 B. r sin ? = -2 C. r = -4 cos ? D. r = -4 sin ?
Mathematics
Solve the problem.The temperature of water in a certain lake on a day in October can be determined by using the model 
where x is the number of feet down from the surface of the lake and y is the Celsius temperature of the water at that depth. Based on this model, how deep in the lake is the water 13 degrees? (Round to the nearest foot.)
A. 60 ft B. 4 ft C. 23 ft D. 53 ft
Mathematics
Graph: 
What will be an ideal response?
Mathematics