Subtract.(7w4 - 8wz + 6wz2) - (2w4 + 3wz - 7wz2)
A. 5w8 - 11w2z2 + 13w2z4
B. 9w4 + 11wz + 13wz2
C. 5w4 - 11w2z2 + 13wz2
D. 5w4 - 11wz + 13wz2
Answer: D
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Solve the problem.A construction crane lifts a bucket of sand originally weighing 
at a constant rate. Sand is lost from the bucket at a constant rate of
. How much work is done in lifting the sand 
? (Neglect the weight of the bucket.)
A. 11,200 ft ? lb B. 8750 ft ? lb C. 12,425 ft ? lb D. 9975 ft ? lb
Use the given transformation to evaluate the integral.
Rwhere R is the interior of the ellipsoid 
A. 96? B. 80? C. 72? D. 48?
Find the function value.If Q(x) = 3x2 + 5x + 9, find Q(-3).
A. -3 B. -33 C. 21 D. 51
A polynomial P(x) and a divisor d(x) are given. Use long division to find the quotient Q(x) and the remainder R(x) when P(x) is divided by d(x), and express P(x) in the form d(x)? Q(x) + R(x).P(x) = 2x4 - x3 - 15x2 + 3xd(x) = x + 3
A. (x + 3)(2x3 - 5x2 + 3) + 9 B. (x + 3)(2x3 + 5x2 + 3) + 9 C. (x + 3)(2x3 - 7x2 + 6x - 15) + 45 D. (x + 3)(2x3 - 7x2 + 6x - 15) - 45