Determine whether the relation represents a function. If it is a function, state the domain and range.
A. function
domain: {Bob, Ann, Dave}
range: {carrots, peas, squash}
B. function
domain: {carrots, peas, squash}
range: {Bob, Ann, Dave}
C. not a function
Answer: C
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Match the surface show below to the graph of its level curves.
A. 
B. 
C. 
D. 
Solve the problem.Find the mass of the lamina bounded by 
if 
.
A. 
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B. 
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C. 
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D. 
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Identify the equation as either an identity or not.2 sin 5x cos x = sin 6x + sin 4x
A. Identity B. Not an identity
Solve the problem.The following points form a quadratic relationship: (1, 5.0), (2, 4.4), (3, 4.3), (4, 4.2), (5, 4.6), (6, 4.8), 
The x-coordinates are the years a particular company has been in operation and the y-coordinates are the profit, in millions, for that year. Use quadratic regression to determine the profit in the fourth year.
A. 4.20 million B. 4.35 million C. 4.28 million D. 6.5 million