Molly likes to eat oranges year round, but her friends tell her that she is not living sustainably by doing that. Why is that? A. oranges take a long time to grow
B. oranges are not a healthy fruit
C. oranges are too expensive
D. out-of-season fruit has to be shipped in from around the world
E. orange peel takes too long to decompose

E. orange peel takes too long to decompose

Explanation:

Orange peels: It is estimated that orange peels take around 6 months to decompose,

The answer is A

Explanation:

I used the process of elimination.

It couldn't be B because oranges are healthy

It couldn't be C because oranges aren't that expensive

It couldn't be D because oranges are sold year round

It couldn't be E because even though they do take around 6 months to decompose, they aren't bad for the environment

That leaves A

russian is not my first language, so i'm afraid i can't write out an answer in russian, but hopefully you can find a way to do so. here's my best translation of the problem: you're given a plot of a particle's position in one-dimensional space over time, and you're asked to find either the total distance traveled by the particle after 6 seconds had elapsed, or the total displacement of the particle after 6 seconds.

if you want the total distance traveled, you would first need to determine the particle's velocity as a function of time, then integrate that over the 6-second interval. we know the position function is quadratic with roots at 0 and 6, so we have

where is unknown. because the position is parabolic, there is symmetry about the midpoint at , and we know that

so that the position function is

which means the velocity is

then the total distance traveled is

so the total distance traveled is 20 m.

on the other hand, if you want to find displacement: the particle starts at and ends at , so its displacement is 0.