Answer:
first one it is {all -,7}
Answer:
According to my calculation, the two possible coordinates of vertex C, is 
.
Dividing 3,724 by 6 would equal 620.66666666 repeating. Or 620.667
Hope this helped :)
As the comments state, the velocity is the derivative of the position.
Therefore, the velocity as function of time is:
ds / dt = 24 + 6t - 3t^2.
That is a parabola whose maximum is (1,27). With that you know that the velocity will never be either 63 m/s or 81 m/s.
Also, you know that the velocity at t = 1 s is 27 m/s.
And, you can also find that the velocity at t = 3 is 15 m/s.
I am confident on that this analysis solves your question. Else, insert a comment.
Answer:
g=0
Step-by-step explanation:
If the equation is -4/5g-12=-12, then you would start by canceling out both of the -12, so your new equation would be -4/5g=0. Since you need to get g by itself, multiply it by the inverse -5/4, and you have g by itself.
Your answer would be g=0
