Answer:

Step-by-step explanation:
using the formular for integration by parts;
∫udv = uv -∫vdu ..............equ 1
in the equation below;
∫
u=x , dv =
du= 1 v= 
Substitute into equ 1
∫udv =
- ∫
∫udv =
- 
Day Sis you
1 -30 20
2 0 40
3 30 60
4 60 80
5 90 100
6 120 120
So day 6.
Answer:
The average speed is:

Step-by-step explanation:
The average speed equation is given by:

Were:
- Δx is the displacement (225 miles)
- Δt is the change in time (3 hours)
Then we have:


I hope it helps you!
Answer:
3½
Step-by-step explanation:
-3 - 1/6 + 6 + 2/3
3 + 4/6 - 1/6
3 + 3/6
3½