Evaluate the expression.6xy - x3
for x = -7, y = 9
A. -43
B. -30
C. -35
D. -37
Answer: C
Mathematics
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Describe the graph of the polar equation. 2r cos ? + r sin ? = 4
A. Vertical line passing through (2, 0) B. Line with slope 4 and y-intercept (0, 2) C. Parabola with vertex (2, 4) opening upward D. Line with slope -2 and y-intercept (0, 4)
Mathematics
Find a formula for the nth partial sum of the series and use it to find the series' sum if the series converges.
+ 
+ 
+ ... + 
+ ...
A. 
; 7
B. 
; 7
C. 
; 7
D. 
; 7
Mathematics
Solve the equation.log10(x - 3) = 1 - log10x
A. {2} B. {5} C. {-5} D. {-2}
Mathematics
Write the expression in lowest terms.
A. 
B. - 
C. 
D. 
Mathematics