Let AB 0, n(A) = 3 and n(B) = 5
be given. Find max value of n(AUB).

(3,5)

Step-by-step explanation:

n(AUB)=(3)U(5)

=(3,5)

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.