Solve the problem.A company wishes to manufacture a box with a volume of 40 cubic feet that is open on top and is twice as long as it is wide. Find the width of the box that can be produced using the minimum amount of material.
A. 6.4 ft
B. 3.2 ft
C. 3.6 ft
D. 7.2 ft
Answer: B
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Solve the problem.There are 5 members on a board of directors. If they must elect a chairperson, a secretary, and a treasurer, how many different slates of candidates are possible?
A. 120 B. 125 C. 60 D. 10
Express the integrand as a sum of partial fractions and evaluate the integral.
dx
A. 
tan-1(16x) + 
+ C
B. 
tan-1(4x) - 
- 
+ C
C. 
tan-1(4x) - 
+ C
D. ln 
- 
+ C
Solve. Remember to insert units when writing your answer.Four years ago, John planted a tree in his garden. It was 4 ft 9 in. tall. Since then the tree has grown 7 ft 7 in. How tall is the tree now?
A. 12 ft 4 in. B. 12 ft 6 in. C. 11 ft 4 in. D. 11 ft 16 in.
Solve the inequality. Graph the solution set and write the solution set in set-builder notation.x2 + 16x + 64 < 0
A. ?
B. {x 
C. {x 
D. {x 
