(Discrete structure) Q. Determine whether the relation R on the set of all integers is reflexive, symmetric, antisymmetric, and/or transitive,
where (, ) ∈ if and only if
a) x _= y. b) xy ≥ 1.

f(x) is the value of the function. b is the value of the function when x equals zero or the y-coordinate of the point where the line crosses the y-axis in the coordinate plane.

step-by-step explanation:

hope this !

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

144.50

step-by-step explanation:

21.5 x 13.4=288.10 divide by 2