Use De Morgan's law for quantified statements and the laws of propositional logic to show the following equivalences:
(a) Vr (P(2) A-Q(x)) = 3r (-P(2) VQ(x))
(b) Vr (-P(z) → Q(2)) = 3r (-P(2)A-Q())
(c) -3x (-P(x) V (Q(2)^-R(z))) = Vz(P(2)^(-Q(x) V R()))

step-by-step explanation:

i found the koficent of the linear function and i foun c acordind to the strict formula y=kx+c and then i took 2 as an x and replacet it on the formula i found and then foun the y

company a

step-by-step explanation:

using the linear regression models , it is found that company a   pays about $14 more. but using the same regression (linear) company b pays about $10 more.

so company a pays more than b

3,6 and 7.

step-by-step explanation:

a) unit place of 37 is 7

so the unit place of cube of 37 will be

7³= 343=3

the answer is 3.

b) unit place of 56 is 6, so the unit place of cube of 56 will be

6³= 216=6

the answer is 6.

c) unit place of 133 is 3, so the unit place of cube of 133 will be

3³= 27= 7.

the answer is 7.