Factor using substitution.x4 - x2 - 6
A. (x2 + 3)(x2 - 2)
B. (x2 + 2)(x2 + 3)
C. (x2 + 1)(x2 - 6)
D. (x2 + 2)(x2 - 3)
Answer: D
Mathematics
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Find the range for the data set.319, 319, 319, 319, 348
A. 32 B. 319 C. 29 D. 667
Mathematics
Solve the problem.One pump can drain a pool in 10 minutes. When a second pump is also used, the pool only takes 9 minutes to drain. How long would it take the second pump to drain the pool if it were the only pump in use?
A. 4
minutes
B. 
minute
C. 89 minutes
D. 90 minutes
Mathematics
Subtract. Write a mixed numeral for the answer.
A. 12
B. 13
C. 12
D. 11
Mathematics
Graph the inequality.
A. 
B. 
C. 
D. 
E. 
Mathematics