Determine whether the following symbolized arguments are valid or invalid. 1) A º (B v ~A)
A É B
2) X É (Y É Z)
Y É Z
X É Z
3) A · (~C v B)
A (~B · C)
B º A
4) P É (Q · ~R)
Q É ( P v ~R)
~ (R · Q)
5) A É (B · ~C)
B É ( C v A)
C É ~ B

D. in a discrete probability distribution, the sum of the probabilities for the discrete variables will be > 1. true or false

Witch sequence shows a pattern where each term is 1.5 times the previous term

You work for a landscape company that just got a contract to re-mulch a park. the area that needs mulching is 30 feet by 60 feet. they want a 3 inch layer of much on the area. the company has bags of mulch that cover 2 cubic yards that cost $4.00 per bag. how much will it cost the consumer just in materials to re-mulch the area (round to the nearest dollar)?