Write the interval as an inequality involving x, and illustrate the inequality using the real number line.(-?, -4)
A. x < -4
B. x ? -4
C. x ? -4
D. x < -4
Answer: D
Mathematics
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Solve.How many different three-digit numbers can be written using digits from the set {2, 3, 4, 5, 6} without any repeating digits?
A. 60 B. 120 C. 20 D. 10
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Solve the equation symbolically.
+ 
= -1
A. 
B. No solution
C. 0
D. 1
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Rationalize the denominator. Assume that all variables represent positive real numbers.
A. p
B. 
C. 
D. 
Mathematics