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December 21, 2014

December 21, 2014

Posted by **Jen** on Thursday, July 14, 2011 at 10:42pm.

If Nicholas Thompson teaches this course, then I will get a passing grade.

I did not get a passing grade.

∴ Nicholas Thompson did not teach the course

- Math-Please help :( -
**Max**, Thursday, July 14, 2011 at 11:04pmLet p = Thompson teaches this course.

Let q = I will get a passing grade.

Then the symbolic form should be ~q --> ~p. Completely valid!

Here's why...

p......q......~q......~p......~q --> ~p

T......T.......F........F..............T

T......F.......T........F..............F

F......T.......F........T..............T

F......F.......T........T..............T <---

Notice it is logically equivalent to p --> q (i.e., the truth table of ~q --> ~p is the same as the truth table of p --> q).

- Math-Please help :( -
**alex**, Tuesday, July 19, 2011 at 11:10ama landing airplane, moving in a straight line , passes over two points (p and q) which are 300 feet apart. when the airplane is above p, as seen from Q, its angle of elevation is 60 degress, and when above Q, as seen from p, its angle of elevation is 40 degress. at what distance from q will the airplane land?

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