Perform the indicated operations.
A. -47.2
B. -60
C. 
D. -4.72
Answer: B
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Write the fraction as a decimal.
A. 0.028 B. 0.00028 C. 0.28 D. 0.0028
Solve.The side of a square equals the length of a rectangle. The width of the rectangle is 4 meters longer than its length. The sum of the areas of the square and the rectangle is 48 square centimeters. Find the side of the square.
A. 6 cm B. 2 cm C. 4 cm D. 16 cm
Use the properties of logarithms to find the exact value of the expression. Do not use a calculator.2 ln e4.2
A. e8.4 B. 2.1 C. 4.2 D. 8.4
Solve the problem.From a 50-inch by 50-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) = 2x3 - 150x2 B. V(x) = 4x3 - 200x2 + 2500x C. V(x) = 2x3 - 150x2 + 50x D. V(x) = 4x3 - 200x2