Solve the problem.Find the work done by a force of 200 pounds acting in the direction 
in moving an object 75 feet from (0, 0) to (-75, 0).
A. 15,000.0 ft-lb
B. 6708.2 ft-lb
C. 8944.9 ft-lb
D. 13,416.1 ft-lb
Answer: B
Mathematics
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Find 
and 
.f(x, y) = xye-y
A. 
= ye-y; 
= xe-y
B. 
= ye-y; 
= xe-y(y - 1)
C. 
= ye-y; 
= xe-y(1 - y)
D. 
= ye-y; 
= - xye-y
Mathematics
Evaluate the improper integral.
A. 
B. 
C. 
D. 
Mathematics
Perform the indicated division and find a simplified expression.A patio has an area of 2m3 + 13m2 + 8m - 45. Find the length if the width is 2m + 9.
A. m3 + 2m2 - 5m B. m2 + 2m - 5 C. m2 + 11m - 5 D. m2 - 2m + 5
Mathematics
Solve the quadratic equation.9x2 = 5x
A. 
B. 
C. 
D. 
Mathematics