Solve the rational inequality. Write the solution set using interval notation; then graph the solution set on a number line.
? 0
A. (-?, -7) ? (3, 4)
B. (-?, -7] ? [3, 4)
C. [-7, 3] ? (4, ?)
D. [3, 4)
Answer: B
Mathematics
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Write a description of the set.E = {x | x ? N and 2 < x ? 19}
A. E is the set of natural numbers greater than 2 and less than or equal to 19. B. E is the set of integers greater than 2 and less than or equal to 19. C. E is the set of natural numbers greater than 19 and less than or equal to 2. D. E is the set of natural numbers greater than or equal to 2 and less than 19.
Mathematics
Evaluate the arithmetic expression by performing the operations in the appropriate order.42 ÷ 7 ? (15 - 4)
A. 86 B. 114 C. 94 D. 66
Mathematics
Find the LCD of the given fractions by inspection.
and 
A. 24 B. 14 C. 48 D. 2
Mathematics
Verify the identity.
= 
What will be an ideal response?
Mathematics