Solve.x4 - 12x2 + 27 = 0
A. ±3, ±
B. ±3, ±2
C. 3, 
D. ±3, ±3
Answer: A
Mathematics
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Solve the problem.A hardware store had monthly sales of $119,600 and spent 20% of it on freight costs. How much was spent on freight costs?
A. $239,200 B. $59,800 C. $23,920 D. $598,000
Mathematics
Graph the system of inequalities.
A. 
B. 
C. 
D. 
Mathematics
Determine whether the ordered triple is a solution of the system.(-2, 6, -1)
A. Yes B. No
Mathematics
Use the multiplication principle to solve the equation.
? x = 171
A. 23 B. 76 C. 171 D. 385
Mathematics