Solve the problem.Evaluate 
at (u,v) = (3, 3) for the function w(x, y) = xy - y2; x = u - v, y = uv.
A. 9
B. 6
C. 0
D. -45
Answer: D
Mathematics
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Solve the problem.In a certain city, the cost of a taxi ride is computed as follows: There is a fixed charge of $2.55 as soon as you get in the taxi, to which a charge of $2.00 per mile is added. Find an equation that can be used to determine the cost, C(x), of an x-mile taxi ride, and use this equation to find the cost of a 5-mile taxi ride.
A. $12.73 B. $12.55 C. $12.43 D. $13.45
Mathematics
Subtract. Write the answer in lowest terms.
A. 8
B. 23
C. 22
D. 8
Mathematics
Write the indicated term of the binomial expansion.(5x + 4)3; 3rd term
A. 192 B. 240x C. 300x2 D. 960x
Mathematics
Simplify. Assume that all variables represent positive numbers.
A. (x + 4)2 B. x - 4 C. x + 4 D. (x - 4)2
Mathematics