Answer:
8x + 8y
8 (x +y)
Step-by-step explanation:
When adding or subtracting, the terms should have exact variables like x.
3x + 5x + 8y
Here 3 and 5 have the same variable x so you can add them. (3+5=8)
8x + 8y
Now take out common number (here it's 8):
8 (x + y)
Answer:
t = 0 and t = 2
Step-by-step explanation:
It is at rest when the velocity = 0
The velocity is the 1st derivative
So, x'(t) = 3t^2 - 6t = 0
3t(t - 2) = 0
t = 0 and t = 2
Solve the equation replacing x with 2 and the 6:
-2^2 + 2(2) + 2 = 4 + 4 + 2 =10
-6^2 + 2(6) + 2 = 36 + 12 + 2 = 50
Difference between the answers: 50-10 = 40
Difference between 2 and 6 = 6-2 = 4
Average rate of change = 40/4 = 10
The answer is 10
6y - 4(y - 1) +6
6y - 4y -4(-1) + 6
6y - 4y +4 + 6
2y + 10
1,134.375 km is the answer.
