Using Green's Theorem, compute the counterclockwise circulation of F around the closed curve C.F = (x2 + y2)i + (x - y)j; C is the rectangle with vertices at (0, 0), (2, 0), (2, 3), and 
A. 24
B. -12
C. 12
D. 0
Answer: B
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Find the indicated term of the arithmetic sequence.6, 13, 20, . . . ;12th term
A. 85 B. 90 C. 83 D. 82
Fill in the blank with <, >, or = to make a true comparison statement. 0.64 _____ 0.67
A. = B. > C. <
If the height, n, of a trapezoid equals the length of its shorter base and the longer base is twice the shorter base, then the area of the trapezoid is
(a) 2n (b) 3n2 (c) 1.5n3 (d) 1.5n2 (e) None of these is correct.
A solar oven uses a parabolic reflector to focus the sun's rays at a point 7 inches from the vertex of the reflector (see figure).
L = 7 inches
?
Write an equation for a cross section of the oven's reflector with its focus on the positive y axis and its vertex at the origin.
A. 
B. 
C. 
D. 
E. 