Solve the problem.From a 28-inch by 28-inch piece of metal, squares are cut out of the four corners so that the sides can then be folded up to make a box. Let x represent the length of the sides of the squares, in inches, that are cut out. Express the volume of the box as a function of x.
A. V(x) = 4x3 - 112x2 + 784x
B. V(x) = 2x3 - 84x2 + 28x
C. V(x) = 2x3 - 84x2
D. V(x) = 4x3 - 112x2
Answer: A
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Solve the problem.A trough is to be made with an end of the dimensions shown. The length of the trough is to be 
long. Only the angle ? can be varied. What value of ? will maximize the trough's volume?
A. 13° B. 30° C. 47° D. 32°
Convert the given unit of measure to its base unit - meters, grams, or liters.0.6 kg
A. 60 g B. 0.0006 g C. 6000 g D. 600 g
Use the given information to write an equation. Let x represent the number described in the exercise. Then solve the equation and find the number.The sum of a number and forty-four is fifty.
A. x - 44 = 50; 94 B. 44x = 50; 1.14 C. x ÷ 44 = 50; 2200 D. x + 44 = 50; 6
Use the table to solve the problem. Round to the nearest cent.
Lexi can invest $7700 for 2 years at 10% compounded quarterly. Find the future value.
A. $9381.68 B. $9240.00 C. $165,056,430.00 D. $93,170,000.00