Determine whether or not the function is one-to-one.f(x) = 3x2 + x
A. No
B. Yes
Answer: A
Mathematics
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Determine the local extrema of the function.f(x, y) = 4xy - x2y - xy2
A. f
= 2.37, maximum
B. none
C. f
= 1.185, maximum
D. f(0, 0) = 0, minimum
Mathematics
Represent the shaded area in the figure group with an improper fraction.
A. 
B. 
C. 2
D. 
Mathematics
Use Cramer's rule to solve the system of equations. If D = 0, use another method to determine the solution set.-5x + 2z = -26 7x + 9y + 4z = 113-9x - 6y = -96
A. ({7, 5, 2)} B. {(7, 2, 7)} C. {(6, -7, -2)} D. {(6, 7, 2)}
Mathematics
Factor as completely as possible. If unfactorable, indicate that the polynomial is prime.24x2 + 14xy + 2y2
A. 2(3x + y)(4x + y) B. (6x + 2y)(4x + y) C. prime D. 2(3x - y)(4x - y)
Mathematics