Solve the problem.A box with an open top is formed by cutting squares out of the corners of a rectangular piece of cardboard and then folding up the sides. If x represents the length of the side of the square cut from each corner, and if the original piece of cardboard is 14 inches by 8 inches, what size square must be cut if the volume of the box is to be 72 cubic inches? 
A. 1 in. by 1 in. square
B. 12 in. by 12 in. square
C. 6 in. by 6 in. square
D. 4 in. by 4 in. square
Answer: A
Mathematics
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Find the given value.Find (f + g)(4) when f(x) = 
and g(x) = 2x - 1.
A. 16 B. -1 C. 12 D. 11
Mathematics
Solve the problem.A certain radioactive isotope decays at a rate of 0.15% annually. Determine the half-life of this isotope, to the nearest year.
A. 333 yr B. 201 yr C. 5 yr D. 462 yr
Mathematics
Find the missing parts of the triangle.A = 28°a = 35 kmb = 55 km
A. B1 = 104°, C1 = 48°, c1 = 72 km B2 = 20°, C2 = 132°, c2 = 25 km B. B = 48°, C = 104°, c = 72 km C. No solution D. B1 = 48°, C1 = 104°, c1 = 72 km B2 = 132°, C2 = 20°, c2 = 25 km
Mathematics
Solve the problem.Find the sum of all the integers from 33 to 71.
A. 1924 B. 1995 C. 1957 D. 2028
Mathematics