Solve the problem.An open box is to be constructed from a square sheet of plastic by removing a square of side 4 inches from each corner, and then turning up the sides. If the box must have a volume of 1600 cubic inches, find the length of one side of the open box.
A. 19 in.
B. 20 in.
C. 24 in.
D. 28 in.
Answer: B
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Give an appropriate answer.Given the function f(x, y, z) and the positive number ? as in the formal definition of a limit, find a positive number ? as in the definition that insures 
< ?.f(x, y, z) = x + y - z ; ? = 0.09
What will be an ideal response?
Solve the problem.Find a curve through the point (0, 6) whose length integral, 0 ? x ? 1, is L = 
A. y = x2 B. y = x C. y = x2 + 6 D. y = 2x + 6
Find the opposite of the polynomial.a3 - 7a2 + 3a
A. -a3 - 7a2 - 3a B. -a3 + 7a2 - 3a C. a3 - 7a2 + 3a D. a3 + 7a2 - 3a
The speed of an airplane with a tailwind is 273 miles per hour, and with a headwind 223 miles per hour. On a day with no wind, how far could the plane travel on a 3-hour fuel supply? ? Please enter your answer as a number without the units.
Fill in the blank(s) with the appropriate word(s).