Solve the inequality. Graph the solution on a number line and represent the solution in interval notation when possible.-6(6x - 12) < -42x + 36
A. x ? -6
(-?, -6]
B. x ? -6
[-6, ?)
C. x < -6
(-?, -6)
D. x > -6
(-6, ?)
Answer: C
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Find the moment of inertia (in g?cm2) and the radius of gyration (in cm) with respect to the origin of the given array of masses located at the given points on the x-axis.3.1 g at (-1.9, 0), 5.3 g at (1.9, 0), 4.2 g at (3.6, 0)
A. I = 19 g? cm2; R = 1.2 cm B. I = 19 g? cm2; R = 1.9 cm C. I = 85 g? cm2; R = 2.6 cm D. I = 99 g? cm2; R = 2.8 cm
Solve.x2 + 12x + 36 ? 0
A. {6} B. [6, ?) C. (-?, -6] ? [-6, ?) D. {-6}
Clear fractions then solve by substitution.
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B. 
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D. 
The initial tableau of a linear programming problem is given. Use the simplex method to solve the problem. 
A. Maximum at 25 for x2 = 3, s1 = 2 B. Maximum at 3 for x2 = 6, s1 = 2, s2 = 8 C. Maximum at 15 for x2 = 3, s1 = 2, s3 = 8 D. Maximum at 20 for x2 = 3, s3 = 8