B. 90 degrees. All perpendicular lines create a right angle
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Answer:
(-∞, -7) ∪ (-3, ∞)
Step-by-step explanation:
The line y=0 is the x-axis. The graph is above the x-axis for x < -7 and for x > -3. The solution set is ...
(-∞, -7) ∪ (-3, ∞)
Answer:
0
Step-by-step explanation:
Answer:
C
Step-by-step explanation: