Solve the problem.The height of a box is 5 inches. The length is three inches more than the width. Find the width if the volume is 350 cubic inches.
A. 10 in.
B. 70 in.
C. 5 in.
D. 7 in.
Answer: D
Mathematics
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Write an equation of the line described.Through (8, -4), perpendicular to x = -9
A. y = -4 B. y = 8x - 4 C. y = 8 D. y = 4
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Determine if the parabola whose equation is given opens upward or downward.y = 2x2 - 2x - 6
A. downward B. upward
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Graph the solution set of the system of inequalities.3x - 2y ? -6 x - 1 < 0
A. 
B. 
C. 
D. 
Mathematics
Solve the system using Gaussian elimination. x + y + 11z = -122x + y + 14z = -19
A. {
z is any real number}
B. ?
C. {(-7, -5, 0)}
D. {
z is any real number}
Mathematics