Find curl F.F(x, y, z) = y cos(x)i + x sin(y)j - 9k
A. 0
B. x cos(y)i - y sin(x)j + (x cos(y) + y sin(x))k
C. 0i + 0j + (sin(y) - cos(x))k
D. (-9 - x)i + (y + 9)j + (x - y)k
Answer: C
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Solve the problem.The ellipse 
+ 
= 1 is shifted horizontally and vertically to obtain the ellipse 
+ 
= 1. Graph the new ellipse.
A. 
B. 
C. 
D. 
Write the fraction as a decimal. If necessary, use repeating decimal notation.
A. 0.93
B. 0.9
C. 0.
D. 0.
Solve the problem.A rectangular garden is three times as long as it is wide. If the area of the garden is 2187 ft2, find the length and width of the garden.
A. length: 81 ft; width: 27 ft B. length: 27 ft; width: 9 ft C. length: 78 ft; width: 26 ft D. length: 729 ft; width: 3 ft
Given the equation or other information for a parabola, find the matching description or graph.f(x) = ax2 + bx + c,a > 0; b2 - 4ac > 0
A. 
B. 
C. 
D. 