For the first one it’s subtraction property of equality
Answer:
the relation between them are
n(U) = n(X U Y) + n(xūy).
<span>a) if the bacteria double every hour then it would 2^t(1200) where t is hours and 1200 is the amount in there to begin with.
b) assuming the formula is correct it would be 2^24(1200). this becomes 20132659200 total in a day.</span>
The last 2 y”s are identical