A man is standing on a straight bridge over a river and another man on a boat on the river just below the man on the bridge. If the first man starts walking at the uniform speed of 4m/min
and the boat moves perpendicularly towards the bridge at the speed of

5m/min
, then at what rate are they separating after

4min
, if the height of the bridge above the boat is

3m

answer: i can’t tell you that

step-by-step explanation:

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!

any options?

step-by-step explanation:

answer:

c) the x-coordinate of the center of the circle increases by 3