Answer:
t=11 sec
Step-by-step explanation:
The position of the particle moving along the x-axis is given by:

The velocity is given by:

If s'(t)>0 then the particle is moving right.


This means that the particle is moving left when

The particle changes direction at time t=1 or t=11
Answer:
dufenschmertz evil incorporated...
Step-by-step explanation:
after hours ;)
Answer:
y=18
Step-by-step explanation:
explanation is in the attachment above
Answer: 23^9
Explanation: because a power is when you’re multiplying a number by itself a certain amount of times. So in this case, it’s 23 times itself 9 times, so you write it as 23^9.
Answer:
12
Step-by-step explanation:
EZ!