Solve.Explain how to determine whether a function is even.
What will be an ideal response?
A function f(x) is even if f(x) = f( -x) for all x in the domain of f. Moreover, the graph of an even function is symmetric with respect to the y-axis.
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Evaluate the given double integral by changing it to an iterated integral.
S is the triangular region with vertices (0, 0), (6, 0), and (0, 7)
A. 
B. 
C. 
D. 
Subtract.(27x + 21xy - 10y) - (6x - 16xy - 7y)
A. 55xy B. 21x + 37xy - 3y C. 21x - 37xy - 17y D. 6x - 21xy + 17
Suppose that the total cost function for a radio is linear, that the marginal cost is $27, and that the total cost for 50 radios is $5,250. Write the equation of this cost function 
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A. ?
B. 
C. 
D. 
E. 
Perform the indicated operation.8x3 + 8x2 + 6x - 2 - (3x3 - 3x2 - 8x - 8)
A. 5x3 + 5x2 - 2x - 10 B. 11x3 + 5x2 - 2x + 6 C. 11x3 + 5x2 - 2x - 10 D. 5x3 + 11x2 + 14x + 6