Let f(x, y) = yex + xy2. At which point does f(x, y) have a possible maximum or minimum value?
A. 
B. 
C. (0, 0)
D. 
E. none of these
Answer: B
Mathematics
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Use the shell method to find the volume of the solid generated by revolving the region bounded by the given curves and lines about the y-axis.y = 3x, y = 6x, x = 3
A. 54?
B. 27?
C. 18?
D. 
?
Mathematics
Solve the system of equations. If the system has no solution, say that it is inconsistent.
A. x = 0, y = 12; (0, 12)
B. y = - 
x + 12, where x is any real number
or {(x, y) | y = - 
x + 12, where x is any real number}
C. x = -1, y = 
; 
D. inconsistent
Mathematics
Insert <, >, or = to make the statement true.18 
-18
A. = B. > C. <
Mathematics
Identify the property illustrated by the statement.2 + (7 + 12) = (2 + 7) + 12
A. commutative property of addition B. identity element for addition C. associative property of addition D. distributive property
Mathematics