Time = 6hours
Distance = 38.4 Km
Speed = distance /time
= 38.4/6
= 6.4 km/h
Answer:
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Step-by-step explanation:
Given


Where:


Required
The height
The volume is calculated as:

This gives:


Rewrite as:

So, we have:

Take cube roots
![h = \sqrt[3]{455cm^3}](https://tex.z-dn.net/?f=h%20%3D%20%5Csqrt%5B3%5D%7B455cm%5E3%7D)
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<em> --- approximated</em>
It would be on a positive incline and pass through the points (0,-5), (1, -2), and (4,3)
Given the equation:
(1)

We need to find a, b and c. So, we know that a quadratic equation is given by:
(2)

Then, we need to order the equation (1) and to adjust it to the equation (2), so:

So, if we compare these two equations, the conclusion is:



(3)

Substituiting a, b and c into (3):

Finally, the results are two values:
