Answer:
the only one in five years ago and I have a good time to do so, I was just wondering 8th, I am a bit
Answer:
Line AB is Perpendicular to line CD
Line AB Parallel to line EF
Let's say the numbers are "a" and "b"
thus

set the derivative to 0, and check the critical points, there's only one anyway
and do a first-derivative test, to see if it's a maximum
Answer:
B
Step-by-step explanation:
it matches the table