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:
middle brother = x
older brother = x+1
younger brother = x-1
x-1+x+x+1=129
3x+0=129
3x=129
x = 43(middle brother)
43-1 = 42(younger brother)
43+1 = 44(elder brother)
Check:
43-1+43+43+1=129
42+43+44=129
129=129
Step-by-step explanation:
hope this help you::::::::::)
Im sorry i have no clue what this is
Answer:
{(1, 5.75), (2, 5.50), (3, 5.25)}
Explanation:
x increases from 1 to 2 to 3
.
That <em>eliminates options B and D</em>.
y decreases at a rate of 0.25 gal/min.
At x = 1 min, y will have decreased to 5.75 gal.
That <em>eliminates Option A.
</em>
The correct answer is {(1, 5.75), (2, 5.50), (3, 5.25)}.
A graph of <em>volume vs. time</em> using the correct set of ordered pairs shows that the initial volume at t = 0 is 6 gal.