Answer:
a ) If r ⇒ p
If q ⇒ p
r ∪ q
If r∪p ⇒ ¬ r
∴ s
b) The argument is invalid
Step-by-step explanation:
The argument is invalid because we do not with precision if b), because we do not have enough information about it, and this is because the previous sentences does not mention information about the donkey. We cannot infer something when we do not have enough information.
Rational number since a rational number is Any integer
The length of the base is 6. You can use the formula b=a/h to find the base. <span />
So what u need to do is
46+x=180 and u will get the answer