Solve the problem.A rectangular piece of cardboard measuring 20 inches by 39 inches is to be made into a box with an open top by cutting equal size squares from each corner and folding up the sides. Let x represent the length of a side of each such square. What is the maximum volume of this box? If necessary, round to 2 decimal places.
A. 1490.83 in.3
B. 1364.09 in.3
C. 631.5 in.3
D. 29,578.83 in.3
Answer: A
Mathematics
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A. 
B. 
C. 
D. 
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Evaluate the expression.
A. 40 B. 20 C. 10 D. 120
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The sequence is defined recursively. Write the first four terms.a1 = 2; an = an-1 - 3
A. a1 = 2, a2 = 1 , a3 = -2 , a4 = -5 B. a1 = 2, a2 = -1, a3 = -4, a4 = -7 C. a1 = 2, a2 = 5 , a3 = 8 , a4 = 11 D. a1 = -3, a2 = -6, a3 = -9, a4 = -12
Mathematics
Use a real number to represent the situation.Joey grew 1
inches in the span of two years.
A. +1
B. -1
Mathematics