Aboat heads south at 1,200 mph while a steamer heads east at 500 mph. if they started from the same dock and at the same time, when will the distance between them be 1,300 mi?

After t=1 hour the distance between the boat and the steamer be 1300 mi.

Step-by-step explanation:

Given the speed of boat = 1200 mph

the speed of steamer =500 mph

Distance traveled by boat in time "t"=

Distance traveled by steamer in time time "t"=

As boat head south and steamer heads east ∴ they will make a right angle triangle with hypotenuse=shortest distance between them =1300mi(given)

By Pythagoras theorem

⇒t=1 hour

Thus, after t= 1 hour the distance between them be 1300 mi.

b.an increase in a causes b to decrease

< 4, -5>

step-by-step explanation:

starting from g. we move 4 right and then 5 down to get to h. that means the vector is < 4, -5>