Graph the ellipse and locate the foci.4x2 + 9y2 = 36
A. foci at (0, 
) and (0, -
)
B. foci at (
, 0) and (-
, 0)
C. foci at (
, 0) and (-
, 0)
D. foci at (2
, 0) and (-2
, 0)
Answer: C
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Test the vector field F to determine if it is conservative.F = x3y3z3i + x3y3z3j + z3k
A. Conservative B. Not conservative
Describe the graph of the polar equation. 9r cos ? + r sin ? = 6
A. Vertical line passing through (9, 0) B. Parabola with vertex (9, 6) opening upward C. Line with slope 6 and y-intercept (0, 9) D. Line with slope -9 and y-intercept (0, 6)
Use the product rule to simplify the expression. Assume that the variables can be any real number.
A. - 2a2b 
B. 2ab 
C. 2 
D. 2ab 
Solve the problem.A piece of cable which is 
m long is to be cut into pieces 
m long. How many pieces will there be?
A. 
piece
B. 30 pieces
C. 50 pieces
D. 6 pieces