Solve the problem.A vertical right circular cylindrical tank measures 
high and
diameter. It is full of oil weighing 
. How much work does it take to pump the oil to the level of the top of the tank? Give your answer to the nearest ft ? lb.
A. 1,642,173 ft ? lb
B. 27,370 ft ? lb
C. 3,284,347 ft ? lb
D. 6,568,693 ft ? lb
Answer: A
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Convert 60 inches to feet.
A. 15 B. 5 C. 2.5 D. 7.5 E. 30
Find the coordinates of the centroid of the given figure. Each region is covered by a thin, flat plate.The region cut from the first quadrant by the circle x2 + y2 = 4
A. 
B. 
C. 
D. 
Use the Hamilton method to make the assignment.The students of 5th, 6th, and 7th grades of Great Middle School are putting up a charity show. The 
committee making decisions is in proportion to the number of students in each grade. There are 126 
105 6th-graders and 97 7th-graders. Assign members to the committee.
A. 5th: 4; 6th: 4; 7th: 3 B. 5th: 3; 6th: 3; 7th: 4 C. 5th: 4; 6th: 3; 7th: 4 D. 5th: 3; 6th: 4; 7th: 4
Simplify the rational expression. Assume that no variable has a value which results in a denominator with a value of zero.
A. 
B. 
C. 
D. 