Answer:
The statement
is a contingency.
The statement
is a contradiction.
Step-by-step explanation:
A tautology is a proposition that is always true.
A contradiction is a proposition that is always false.
A contingency is a proposition that is neither a tautology nor a contradiction.
a) To classify the statement
, you need to use the logic laws as follows:

by the logical equivalence involving conditional statement.
by the Commutative law.
by Distributive law.
by the Commutative law.
by the Negation law.
Therefore the statement
is a contingency.
b) To classify the statement
, you need to use the logic laws as follows:

by the logical equivalence involving conditional statement.
by the Commutative law.
by Distributive law.
by the Negation law.
Therefore the statement
is a contradiction.
Answer:
5 feet by 1 foot
took the unit test on edge
Answer:
It's correct
Step-by-step explanation:
Good job! arcsin(0.9659) is indeed 75 degrees
Answer:
therefore reece'sis 16 years old
Step-by-step explanation:
18+p=34
p+18-18=34-18
p=16