Solve the problem.A person is pulling a freight cart with a force of 57 pounds. How much work is done in moving the cart 70 feet if the cart's handle makes an angle of 20° with the ground?
A. 3854 ft-lb
B. 3749.4 ft-lb
C. 136.5 ft-lb
D. 1364.7 ft-lb
Answer: B
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Evaluate the spherical coordinate integral.
A. 9 B. 9? C. 6? D. 6
Solve the problems.An investigating officer examining skid marks at the scene of an accident estimates the speed of the vehicle to have been 76 feet per second. Was the driver exceeding the 55 miles per hour speed limit?
A. No. The driver was traveling 52 mi/hr. B. Yes. The driver was traveling 58 mi/hr.
Solve the problem.A pair of running shoes costs $55 and a pair of basketball shoes costs 
Find the total cost for both pairs of shoes.
A. $8 B. $27 C. $98 D. $102
Mrs. Brown has been working in a factory for 28 years. She is preparing to retire. Her pension is calculated on the average of her last 3 years' salaries where she earned $38,592, $37,590, and $37,010. Her employer will give her 1.8% of that average for each year she worked. Calculate her pension.
What will be an ideal response?