Solve the problem. Assume that relative maximum and minimum values are absolute maximum and minimum values.A closed rectangular box with a volume of 16 cubic feet is made from two kinds of materials. The top and bottom are made of a material costing $0.10 per square foot, and the sides are made of a material costing $0.05 per square foot. Find the dimensions of the box so that the cost of materials is minimal.
A. 2 ft by 4 ft by 4 ft
B. 
ft by 
ft by 8 ft
C. 2 ft by 2 ft by 4 ft
D. 1 ft by 1 ft by 16 ft
Answer: C
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Solve the problem.The population of a city is roughly 2,457,000. Of these, 6.9% are of Hispanic origin. How many residents of the city are of Hispanic origin?
A. About 356,087 residents B. About 169,533 residents C. About 16,953 residents D. About 1,695,330 residents
Write the compound inequality as an absolute value inequality. Do not simplify.-0.9 < 4x + 7 < 0.9
A. 
> 0.9
B. -0.9 < 
< 0.9
C. 4x + 7 < 
D. 
< 0.9
Determine whether the matrix is in echelon form, reduced echelon form, or neither.
A. Neither B. Echelon form C. Reduced echelon form
Solve the problem.The roof of a building is in the shape of the hyperbola 
where x and y are in meters. Determine the distance, w, between the outside walls.A = 11 m
A. 19.3 m B. 12.2 m C. 9.65 m D. 93 m