Solve the problem.An open-top rectangular box has a square base and it will hold 256 cubic centimeters (cc). Each side has length x cm and height y cm. The box's surface area is given byS(x) = 
+ x2.
Estimate the minimum surface area and the value of x that will yield it.
A. 256 cm2 when x = 8 cm
B. 108 cm2 when x = 8 cm
C. 192 cm2 when x = 8 cm
D. 256 cm2 when x = 6 cm
Answer: C
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Solve the problem.A 23-inch piece of string is cut into two pieces. One piece is used to form a circle and the other to form a square. How should the string be cut so that the sum of the areas is a minimum? Round to the nearest tenth, if necessary.
A. Circle piece = 12.9 in., square piece = 10.1 in. B. Square piece = 0 in., circle piece = 23 in. C. Square piece = 12.9 in., circle piece = 10.1 in. D. Square piece = 5.8 in., circle piece = 5.3 in.
Solve the problem.A certain object, after being heated, cools at such a rate that its temperature T 
decreases 
each minute. If the object is originally heated to 
find 
T where t is time in minutes.
A. 0°C B. 42.8°C C. 38.9°C D. 10.0°C
0010 hours military time = _____ standard time.
A. 12:10 AM B. 24:10 PM C. 12:10 PM D. 1:10 AM
Subtract.
A. 2810 B. 2800 C. 5810 D. 2700