Simplify the expression.- 256-1/4
A. 4
B. - 
C. 
D. -4
Answer: B
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Use a graphing calculator to solve the system of equations. Round your solutions to one decimal place.2.7x - 1.5y + 3.6z = -0.43.3x - 7.0y - 1.4z = -5.02.4x - 2.9y + 4.2z = -3.7
A. (7.0, 6.7, -2.9) B. (1.7, 1.7, -0.7) C. (3.5, 3.4, -1.4) D. (13.9, 13.4, -5.7)
Solve the problem.A piece of cardboard is twice as long as it is wide. It is to be made into a box with an open top by cutting 2 cm squares from each corner and folding up the sides. Let x represent the width of the original piece of cardboard. Find the width of the original piece of cardboard, x, if the volume of the box is 2496 cm3.
A. 28 cm B. 24 cm C. 29 cm D. 27 cm
Find the eccentricity e of the ellipse.4x2 + y2 = 36
A. 
B. 
C. 
D. 
Solve the rational inequality. Express the solution in interval notation.
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A. (-?, -43) ? (6, ?) B. (-43, -1) ? (6, ?) C. (-?, -43) ? (-1, 6) D. (-43, -1) ? (-1, 6)