Solve.x3 + 4x2 - 12x = 0
A. 0, 2, 6
B. 6, -2
C. -6, 0, 2
D. 0, -6
Answer: C
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Solve the problem.The average cost of a 4-year college education is projected to be $100,000 in 15 years. How much money should be invested now at 3.5%, compounded quarterly, to provide $100,000 in 15 years?
A. $35,153.96 B. $87,749.93 C. $100,000.00 D. $59,290.78
Find an equation of the parabola whose graph is shown.
 figure 1.png)
Graph the system of linear inequalities. Tell whether the graph is bounded or unbounded, and label the corner points.
A. unbounded;
corner points (0, 0), (0, 5), (5, 0)
B. bounded;
corner points (9, 0), (0, 9),(0, 5), (5, 0)
C. unbounded;
corner points (9, 0), (0, 9)
D. no solution
Solve the problem.Suppose that 12% of the teachers at a university attended a conference. If 720 teachers attended the conference, how many teachers are at the university?
A. 72 teachers B. 72,000 teachers C. 7200 teachers D. 6000 teachers