Solve the inequality. Graph the solution set and write the solution set in interval notation.x4 - 20x2 + 64 ? 0
A. [-4, -2] ? [2, 4]
B. (-?, -4) ? (-2, 2) ? (4, ?)
C. (-4, -2) ? (2, 4)
D. (-?, -4] ? [-2, 2] ? [4, ?)
Answer: D
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Evaluate the expression.
A. 2310 B. 210 C. 462 D. 42
Solve the equation. If the equation is an identity or a contradiction, state this.3(x - 1) + x = 4(x + 1) - 7
A. ? or { }; contradiction B. {0} C. {3} D. all real numbers; identity
Solve the problem.Suppose 6 people sit at a circular table. Find the probability that 2 particular people are sitting next to each other.
A. 0.33 B. 0.2 C. 0.1 D. 0.4
The information below refers to triangle ABC.
?
inches. Find all the missing parts.
?
Apply the rules regarding the use of significant digits after all computations are complete.
?
A. 
inches, 
inches
B. 
inches, 
inches
C. 
inches, 
inches
D. 
inches, 
inches
E. 
inches, 
inches