Choose the graph of the equation.z = y4 + x2 - 2y2 - 
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Find the work done by F over the curve in the direction of increasing t.F = -3yi + 3xj + 4z9k; C: r(t) = cos ti + sin tj, 0 ? t ? 5
A. W = 0
B. W = 30
C. W = 15
D. W = 
Mathematics
Solve the problem.An item costs $1346 and is marked down twice due to sales. The first markdown rate is 10% and the second markdown rate is 20%. What is the final selling price?
A. $942.20 B. $673.00 C. $1316.00 D. $969.12
Mathematics
Find the domain of the function.f(x) = 8x - 2
A. {x|x > 0}, or (0, ?) B. {x|x ? 0}, or (-?, 0) ? (0, ?) C. {x|x > 2}, or (2, ?) D. all real numbers, or (-?, ?)
Mathematics
Factor by grouping.18x2 + 24xy + 15xy + 20y2
A. (6x + 5y)(3x + 4y) B. (6x + 5)(3x + 4) C. (18x + 5y)(x + 4y) D. (6x - 5y)(3x + 4y)
Mathematics