7. a 60-foot boxcar needs to get around a corner as shown in the figure to the right. the car is placed on trollies that travel along tracks perpendicular to each other. if one
end of the car is moved at 6 inches per second along the bottom wall, how fast is the other end of the car moving along the side wall when the car is 36 feet from the corner? how fast is the angle of the car against the bottom wall changing at the same time? this is a related rates problem.

cheater

step-by-step explanation:

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for

i agree because i see the other persons thinking is clear

im with everythinglos so yeahhhhh

step-by-step explanation: