Solve the problem.A box has a base whose length is twice its width. The volume of the box is 7000 cubic inches.a) Find a function for the surface area of the box.b) What are the dimensions of the box that minimizes surface area?
What will be an ideal response?
| a) | Surface area equals A(x) = 4x2 +  , x > 0, where x equals the width of the box. |
Mathematics
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Solve the problem.A merchant has coffee worth $40 a pound that she wishes to mix with 30 pounds of coffee worth $90 a pound to get a mixture that can be sold for $70 a pound. How many pounds of the $40 coffee should be used?
A. 10 lb B. 50 lb C. 20 lb D. 25 lb
Mathematics
Use one or more transformations to graph the function.y = 
A. 
B. 
C. 
D. 
Mathematics
Answer true or false.If the two equations in a system of linear equations are added and the result is 
the system has no solution.
A. False B. True
Mathematics
Find the indicated rate.A tortoise traveled 0.36 miles in 2.5 hours. What was its speed?
A. 0.9 mi/hr
B. 0.244 mi/hr
C. 6.944 mi/hr
D.
| 0.144 mi/hr |
Mathematics