Step-by-step explanation:
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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.
Hello there!
You expect to sell 100% - 20% = 80% of many coffee sales.
0.80 * 1500 = 1200
Your answer is 1200 cups of coffee.
Hope I helped!
Let me know if you need anything else!
~ Zoe
is there a pic or will it not load for me?
