Here are some questions, i have helped many of you and i will give 20 points for helping me :) doing all the questions would be preferred have a great day

The position of a particle is given by s=t^3-6t^2+9^t, where s is in meters and t is in seconds.

A) Compute the velocity and acceleration of the particle at time t.

B) At what time is the velocity 0?

C) What is the total distance traveled by the particle on 0 less than/equal to t less than/equal to 4.

Step-by-step explanation:

The position of a particle is given by s=t^3-6t^2+9^t, where s is in meters and t is in seconds.

A) Compute the velocity and acceleration of the particle at time t.

B) At what time is the velocity 0?

C) What is the total distance traveled by the particle on 0 less than/equal to t less than/equal to 4.

step-by-step explanation:

{x = -1/2 ,   y = -1

step-by-step explanation:

solve the following system:

{2 x + y = -2

{10 x - 3 y = -2

in the first equation, look to solve for y:

{2 x + y = -2

{10 x - 3 y = -2

subtract 2 x from both sides:

{y = -2 x - 2

{10 x - 3 y = -2

substitute y = -2 x - 2 into the second equation:

{y = -2 x - 2

{10 x - 3 (-2 x - 2) = -2

10 x - 3 (-2 x - 2) = (6 x + 6) + 10 x = 16 x + 6:

{y = -2 x - 2

{16 x + 6 = -2

in the second equation, look to solve for x:

{y = -2 x - 2

{16 x + 6 = -2

subtract 6 from both sides:

{y = -2 x - 2

{16 x = -8

divide both sides by 16:

{y = -2 x - 2

{x = -1/2

substitute x = -1/2 into the first equation:

{y = -1

{x = -1/2

collect results in alphabetical order:

answer:   {x = -1/2 ,   y = -1